Question

What current is needed for a 1,200-watt hair dryer if the resistance is 16 ohms?

Answer 1

Answer:

i= 8.66 amp

Step-by-step explanation:

power= 1200 w , p= (current )^2 × resistance

so i^2 = P/R = 1200 / 16 = 75

i =√ 75 = 8.66025