- #1
Aryan Andaleeb
- 12
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Homework Statement
If we denote:
Alternating current in the primary coil as I1
Alternating current in the secondary coil as I2
Similarly, we denote,
Number of turns in primary coil as N1
Number of turns in secondary coil as N2
And, we denote,
Voltage generated across primary coil as V1
Induced voltage across secondary coil as V2
Okay, now let the load, R, be connected to the secondary.
Now, exactly on which factors do the value of I2 depend on?
Homework Equations
Here,
V1 / V2 = N1 / N2 = I2 / I1 -------i
Again,
I2 = V2 / R ------------------------ii
Besides,
I1 = V1 × Z --------------------iii
[Where, Z means electrical imppedance in the primary coil, generated by the ac generator]
The Attempt at a Solution
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But,
I2 = I1 × V1 / V2 ----------------- iv
and also,
I2 = I1 × N1 / N2 -----------------v
Where, each of the magnitude on the right-hand side of both the equation is constant.
So, is the value of I2 dependent upon R ?
If the answer is yes, then,
as R is variable, so,(according to equation no.ii) I2 is variable.
Therefore, (according to equation no.iv and v) I1 is variable.
But, according to equation no. iii
I1 = V1 × Z
Now, I'm getting a bit confused. How can this equation (equation no.iii) be true?
Since,
I1 is variable depending on R
But, at the same timeV1 is constant.
Z is constant.So, its getting difficult to predict the controlling factors of I2
Please help. I've stuck in this problem for a few days!