Question

What is the potential difference across a 100 ohms resistor when a current of 0.25 A is passed through it?

A) 25 V
B) 50 V
C) 75 V
D) 100 V

Answer 1

Using Ohm's Law, V = I x R, the potential difference across a 100 ohms resistor with a 0.25 A current is 25 V.

Step-by-step explanation:

The potential difference across a resistor in an electrical circuit can be calculated using Ohm's Law, which states that the voltage (V) across a resistor equals the current (I) flowing through it multiplied by the resistance (R) of the resistor. For a 100 ohms resistor with a current of 0.25 A passing through it, the potential difference can be found by:

V = I × R

V = 0.25 A × 100 Ω

V = 25 V

Therefore, the potential difference across the 100 ohms resistor is 25 volts, which corresponds to option A).