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Self Induction

Question 11A ...

Question

Question 11
A student carries out an experiment and plots the V-I graph of three samples of nichrome wire with resistances R1, R2 and R3 respectively (Figure). Which of the following is true?

(a) R1 = R2 = R3
(b) R1 > R2 > R3
(c) R3 > R2 > R1
(d) R2 > R3 > R1

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Solution

(c) R3 > R2 > R1

Since the increase in current is most in $R_{1}$ , the value of $R_{1}$ will be least because current is inversely proportional to the resistance.

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