The V-i graph for a conductor makes an angle with V-axis. Here V … - Vidyadip

MCQ

The $V$-i graph for a conductor makes an angle $\theta$ with $V$-axis. Here $V$ denotes the voltage and $i$ denotes current. The resistance of conductor is given by

A
$\sin \theta$
B
$\cos \theta$
C
$\tan \theta$
✓
$\cot \theta$

✓

Answer

Correct option: D.

$\cot \theta$

(d) At an instant approach the student will choose $\tan \theta$ will be the right answer. But it is to be seen here the curve makes the angle $\theta$ with the $V$-axis. So it makes an angle $(90-\theta)$ with the i-axis.So resistance $=$ slope $=\tan (90-\theta)=\cot \theta$.

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