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Prashan Shan
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if an voltage is applied in an electric circuit connected to a resistor voltage drops across the resistor right? how much time it takes in that process?
does it occur instantly?
does it occur instantly?
then let's imagine a conductor AB of length about 1 light minute, and we applied enough voltage what happens at that instant and after few seconds,mfb said:It depends on the circuit, but typical timescales are nanoseconds. The speed of light is a fundamental limit, of course.
Prashan Shan said:then let's imagine a conductor AB of length about 1 light minute, and we applied enough voltage what happens at that instant and after few seconds,
explain how current flows, and flow of electrons in that criteria.
actually my doubt is in a conductor of length 2 light minutes, let's say that end A and B are at same potential.Drakkith said:The current begins to flow at each end and the voltage change in the conductor propagates at
Drakkith said:The current begins to flow at each end and the voltage change in the conductor propagates at near the speed of light. The rate of change in current and voltage at any location in the conductor is not instant.
near the speed of light. The rate of change in current and voltage at any location in the conductor is not instant.
Prashan Shan said:actually my doubt is in a conductor of length 2 light minutes, let's say that end A and B are at same potential.
suddenly if the potential of end A is increased, then after few nano seconds does the electron starts to flow from any 1 of the 2 ends? (or) will it wait till the electric field is fully established in the conductor?
Voltage drop is measured by using a voltmeter to measure the difference in voltage between two points in an electrical circuit.
The rate of voltage drop can be affected by the length and thickness of the wire, the temperature, and the amount of current flowing through the circuit.
The time it takes for voltage to drop in a circuit can vary depending on the factors mentioned above. In general, it can happen instantly or over a period of time, ranging from milliseconds to minutes.
Voltage drop cannot be prevented entirely, but it can be minimized by using thicker wires, reducing the length of the wire, and keeping the temperature of the circuit stable.
Excessive voltage drop can lead to decreased efficiency and performance of electrical devices, overheating of wires, and potential damage to the circuit or equipment.