Question

GUYS PLS HELP ME I HAVE A TEST

A 1100 W hairdryer is used on the 230 V mains supply. What is the current supplied?
Use the formula sheet.

Answer 1

Answer:

4.78 [A].

Explanation:

1) formula: P=U*I, where P - power (1100W), I - current, U - voltage;

2) according to the formula above:

I=P/U; ⇒ I=1100/230≈4.78 [A].