Question

A current of 1·5 A passes through a conductor of resistance 20Ω. The potential difference across it is

• A. 13.33 V
• B. 30 V
• C. 5 V
• D. 20 V

Answer 1

The Correct Option is B

Correct answer: 30 V
 
Explanation:
Using Ohm’s Law:
\[ V = IR \] where:
\( I = 1.5 \ \text{A} \) (current) 
\( R = 20 \ \Omega \) (resistance) 

Substituting the values:
\[ V = 1.5 \times 20 = 30 \ \text{V} \] 
Hence, the potential difference across the conductor is: 30 V.