An electric heater is connected to the 230V mains supply. A current of 8A flows through the heater. a) How much charge flows around the circuit each second? How much energy is transferred to the heater each second?

Given,

Potential difference = 230V Current, I = 8A

1. I = Q/t 8 = Q/1

Q = 8 × 1 = 8C

Therefore, the charge flow around the circuit for every second is 8C.

1. We know that energy transferred = work done Potential difference = work done/charge moved 230 = work done/8

Therefore, work done = 230 × 8 = 1840J