Question

Find the power of a microwave that uses a current of 7.8 A and has a resistance of 35 Ohm’s.
3.22kW b) 2.13kW c) 5.43kW d) 1.57kW e) 6.34kW



help me !!!

Answer 1

Answer:

b) 2.13KW

Explanation:

The formula of calculating the power is

Power = (Current)^2 × Resistance

P= I^2×R

Here, I= 7.8A and R=35ohm

put in the formula of power,

P=(7.8)^2×35 = 2129.4W

To convert W into KW divide the value by 1000

P= 2129.4 W = 2.13KW