Question

A current of $0.2A$ flows through a conductor of resistance $4.5\Omega$. Calculate the p. d. at the ends of the conductor.

Answer 1

Step 1: Given data:

$\text{I}=0.2\text{A},\text{R}=4.5\Omega$

Step 2: To determine the potential difference at the end of the conductor:

According to ohm’s law,

$\text{V}=\text{IR}$

Thus,

$\text{V}=0.2\times 4.5$

$\text{V}=0.9\text{volts}$

Hence, the potential difference at the ends of the conductor is $\text{V}=0.9\text{volts}$.