Question

An observer
takes two observations as given below, while performing Ohm's law experiment:

S.No.	Ammeter reading	Voltmeter reading
(i)	0.50Amp.	2volt
(ii)	0.75Amp.	3volt

Determine the resistance of conducting wire for each observation.

Answer 1

For case $\left(i\right)$,

$V=2v$

$I=0.5A$

$\therefore R=\frac{V}{I}=\frac{2}{0.5}=4\Omega$

For case $\left(ii\right)$,

$V=3v$

$I=0.75A$

$\therefore R=\frac{V}{I}=\frac{3}{0.75}=4\Omega$