What is Right hand rule: Definition and 116 Discussions
In mathematics and physics, the right-hand rule is a common mnemonic for understanding orientation of axes in three-dimensional space.
Most of the various left-hand and right-hand rules arise from the fact that the three axes of three-dimensional space have two possible orientations. One can see this by holding one's hands outward and together, palms up, with the fingers curled, and the thumb out-stretched. If the curl of the fingers represents a movement from the first or x-axis to the second or y-axis, then the third or z-axis can point along either thumb. Left-hand and right-hand rules arise when dealing with coordinate axes. We can use this to find the direction of the magnetic field, rotation, spirals, electromagnetic fields, mirror images, and enantiomers in mathematics and chemistry.
Homework Statement
> Figure 1:
>
> A spool is hung on a spring. A part of the coil hangs in front of a
> homogeneous magnetic field. The coil is incorporated in an electrical
> circuit. See Figure 1.
>
> the coil KLMN has a rectangle shape, has a height of 10.0 cm, a width
> of 8.0 cm, and...
1. Two charged particles are traveling in circular orbits with the same speed in a region of uniform magnetic field that is directed into the page, as shown. The magnitude of the charge on each particle is identical but the signs of the charges are unequal. Which one of the entries in the table...
I already know that the right hand rule could just as well be the left hand for the rotational motion vectors like torque and angular momentum, but what about magnetism? It seems like nature behaves strictly "right handedly" for magnetism. Is that true, or could you use the left hand rule, just...
so, the magnitude of the cross product represents the area or volume enclosed by any 2 or 3 vectors respectively, but what does the direction represent? i get that the general direction is one that is perpendicular to all the vectors, but what does the actual direction represent? ie, why the...
Hi,
I have a question about how to apply the right hand rule in this vector (AxB)
I would say that it is -k (missing ^) because of the smallest angle is the one drawn in red, but it is k. Can anyone explain why?
Homework Statement
I'm having problems with understanding how to use the right hand rule as it applies to forces and determining moments. If I understand correctly, The fingers point in the direction of the force, then curl in the direction of r, but I'm not sure what r would be in this...
Right Hand Rule doesn't work for this problem?
Consider an electron near the Earth's equator. In which direction does it tend to deflect if its velocity is directed in each of the following directions?
I DON'T get this!
I know they're basically saying this:
Velocity of electron (v)...
Is the right hand rule for determining the direction of the magnetic field, force, and current only used when the aforementioned vectors are orthogonal to each other? Or, can the RHR be used in other cases as well?
How to determine the angular acceleration using the right hand rule??
I know how to get the direction of angular velocity using RHR. We curl up our fingers to the direction at which the object rotates relative to an aix and the thumb shows the direction. My question is, with the same analogy...
Among its many other uses, it looks like you can use the right hand rule for screwing in a light bulb or screwing on the cap to a jug of milk!
Who said learning physics was of no practical use?
Hi everyone! I'm trying to work out a physics problem using Lenz's Law, but I'm having trouble with the Right Hand rule, which as I understand is supposed to be used to solve the problem.
1. Basically, there are 2 copper wire loops, Loop A and Loop B. They are lying flat on the table. There...
I'm trying to solve problems about magnetic fields of electric currents induced by charged particles and wires. Most of these problems require the right hand rule, which I don't really understand. All I know is your thumb points in the direction of the current and your fingers curl in the...
Hey guys,
I have a simple conceptual question: Let's say I'm moving a loop of wire into a constant magnetic field that points into the page. The wire needs to create a magnetic field out of the page to oppose this previous change in flux. The typical question would be which direction does the...
Question about "right hand rule" for physics
My school doesn't offer physics for freshmen right now, so I'm self studying it. Regarding the right hand rule for vectors, I'm slightly confused. I did excellent using it in mechanics, it was relatively simple, but I was at a loss as to how to use...
I have attached the drawing.
Why is the magnetic field at the location negative and not positive? When I do the right hand rule I point my thumb in the direction of the current and wrap my fingers around the wire. My fingers pointed up for each wire which should be positive z not negative, but...
for the right hand rule for a wire with a current and magnetic field. Your thumb points in the direction of the current and you wrap your fingers around the wire. Do your fingers form a fist or how much do you curl it? Right now, I'm curling my fingers where the tips of my fingers TOUCH my palm...
Homework Statement
A length of wire extends upward through a piece of cardboard, bends around, forming a loop, and extends back down through the cardboard. All that is visible above the surface of the cardboard is this loop of wire. From your perspective, you are looking downward on the piece...
Homework Statement
#30
Homework Equations
right hand rule #2
The Attempt at a Solution
when i did it, i pointed my thumb to the right, because the current is going to the right. and when i wrapped my hands around the wire until i reach the electron, i go the magnetic force going...
Homework Statement
I am having trouble understanding right hand rule for Lenz's Law.
I need to know how to use the right hand rule with lenz'z law to find the dircection of induced current.
What if a current is flowing clockwise, with mag. field going into page, is the magnetic field...
Homework Statement
A strong magnet is placed under a horizontal conducting ring of radius r that carries current I as shown in the figure below. The magnetic field makes an angle θ with the vertical at the ring's location.
(b) What is the direction of the resultant magnetic force on...
I am having a hard time understanding how come the right hand rule will tell you the direction of a vector that is perpendicular to other two vectors.
I mean, I've seen some examples of a current flowing through a wire, which created a magnetic field around it, if there is a positive particle...
I am having difficulty using the right hand rule to explain a natural phenomenon.
Here's my concern: I know that incomming charged particles from the sun are deflected by the Earth's magnetic field because charged particles moving through a magnetic field experience a magnetic force. Here's a...
Homework Statement
A wire carries a current from left to right, thru a magnetic field which has direction towards you. What is direction of magnetic force on the wire, draw diagram.
Homework Equations
The Attempt at a Solution
I not sure how to do the right hand rule in this...
Hi, I am wondering if anyone here has heard of or can explain this variation of the right hand rule:
Most websites i see tells you to point thumb in direction of current and curl the fingers, and the direction of the magnetic field is the direction you're curling.
But my professor uses a weird...
Homework Statement
It is part of a question, i am not sure how to use RHR to find direction.
http://img220.imageshack.us/img220/2594/rhr.jpg
Uploaded with ImageShack.us
I need to find direction of torque by using right hand rule with the Force vector and R vector ( pointing away from pivot...
Homework Statement
I'm so confused about how to use the right hand rule..there are so many different sources telling me different things...like i need to use the RHR to like find the direction of the magnetic field using the current (and nothing else)..like i followed my book, and they said to...
I don't get the right hand rule that apply to rotational dynamics. How could I use to solve a torque problem and how to know when its positive and what is negative.
Homework Statement
http://img41.imageshack.us/i/photolu.jpg/
Homework Equations
Right Hand Rule
The Attempt at a Solution
I have to find the moments at B. I know I have to use the right hand rule to figure out which force has a positive and which force has a negative action...
Assume that a uniform magnetic field is directed into this page. If an electron is released with an initial velocity directed from the left edge to the right edge of the page, which of the following describes the direction of the resultant force acting on the electron?
I think it would come...
Homework Statement
Use the definition of the definite integral (with right hand rule) to evaluate the following integral from -3 to 2
\int(4x^2-9x+2)dx
Homework Equations
\int from a to b of f(x)dx = limit as n\rightarrow\infty of \sum f(xi)\Deltax. i = 1The Attempt at a Solution
I found delta...
Homework Statement
For this given diagram, determine whether the particle is a proton or an electron.
2. The attempt at a solution
Considering at the point where it enters the material.
Using RHR, Velocity is downwards (First Finger), Field is outwards (Middle Finger), Thumb points left...
Ok... so I know the direction of the force is east, the direction of the velocity is north, and the Magnetic field is out of the page. So I am trying to determine what charge this particle is. The answer is positive but I don't see how that's the answer. Look through my work please, to see...
Homework Statement
It's not a specific problem. I am just having trouble understanding the right hand rule itself and it's application. What variables do you take into account when you are orienting your hand to get the direction. For example, I understand your fingers point in the...
Homework Statement
Decide from the following list of possibilities what is the appropriate direction of the force on the wire for each of the diagrams 1 through 4:
A: up; B: down; C: left; D: right; E: into the page; F: out of the page; G: None of these; H: No force
Input the answers...
Homework Statement
What will happen to the two wires shown in the diagram (in the attachments)?
A: nothing will happen
B: repel each other
C: attract each other
The answer is "B", they will repel each other.
Homework Equations
The Attempt at a Solution
I thought it would...
Homework Statement
I am confused on the drawing below, is the direction of the torque exerted by tension T1 positive or negative?
http://img444.imageshack.us/img444/5190/katrolrh3.jpg
http://g.imageshack.us/img444/katrolrh3.jpg/1/
Homework Equations
The Attempt at a...
Hey
I am trying to figure out how to use the right hand rule when magnetic force points downward. I comprehend what the fingers are used for but when i but the finger downward I get a direction to the left, but the answer is that the direction is north. Why is that?
1. Homework Statement
Let a=(1,2,3) b=(-1,2,-1) and c=(0,1,-2). Do these vectors taken in this order, satisfy the right hand rule? Explain.
3. The Attempt at a Solution
I was told a cross b must equal c otherwise this is not satisfying? I'm VERY confused...can someone help out...
[SOLVED] Right Hand rule, explain please?
I don't have a problem, I just have issues with understanding the right-hand rule, if someone could explain it (with pictures if possible) I would appreciate it, although it might be better in person because I could see the motion.
Homework Statement
Clock hands move slowly but they do have a small angular momentum. According to the right hand rule, in which direction, with respect to the clock face, does the angular momentum vector point?
Homework Equations
right hand rule
The Attempt at a Solution...
Right hand rule for Spinning things...
Hi, I'm havign a hard time figuring out how the right hand rule works for Angular momentum, Angular velocity and torques.
Its so confusing because At university we get problems about rotating solid bodys like a disk on a rod, and when the question...
Homework Statement
A charged particle is moving perpendicular to a magnetic field B. The table below shows the relationships between directions of three vector quantities. Notice that one entry is missing from each column of the table. Your job is to complete the table. Enter your answers in...