Question

34. An electric heater is connected to the 230 V mains supply. A cur
8 A flows through the heater.
(a) How much charge flows around the circuit each second ?
(b) How much energy is transferred to the heater each second ?
in a circuit in​

Answer 1

Explanation:

The charge flows around the circuit each second is 8 C and the energy is transferred to heater each second is 1840 J

Explanation:

Given that,

Voltage = 230 V

Current I= 8 A

(A). The charge flows around the circuit each second

The charge is the product of current and time.

q= i\times tq=i×t

q= 8 A-s=8 Cq=8A−s=8C

(B). The energy is transferred to the heater each second

The energy is the product of the power and time.

The power is the product of voltage and current.

P=V\times IP=V×I

P=230\times8P=230×8

P=1840\ WattP=1840 Watt

The energy is

E= P\times tE=P×t

E= 1840\times 1E=1840×1

E= 1840\ JE=1840 J

Hence, The charge flows around the circuit each second is 8 C and the energy is transferred to heater each second is 1840 J