Question

How many watts of power are present in a 5 ohm unit of resistance in which 2 amperes are following?

a) 2.5 W
b) 5 W
c) 10 W
d) 20 W

Answer 1

The power in the circuit is 20 watts.

Step-by-step explanation:

The power in a circuit can be calculated using the formula:

Power (in watts) = Current2 (in amperes) × Resistance (in ohms)

Given that the resistance is 5 ohms and the current is 2 amperes, we can substitute these values into the formula:

Power = 22 × 5 = 4 × 5 = 20 watts.

Therefore, the correct answer is d) 20 W.