Question

a current of 2 A is passed through a coil of resistance 75 ohm for 2 minutes, find how much heat energy is produced and how much charge is passed through the resistance?

Answer 1

Answer:

• Hence, the amount of heat energy produced is 36000 Joules.

Explanation:

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Answer 2

Answer :-

36000 J

240 C

Explanation :-

Given :

Electric current (I) = 2 A

Resistance (R) = 75 Ω

Time (T) = 2 minutes = 2 × 60 seconds

To find :

Heat (U)

Charge (Q)

Solution :

U = I²RT

U = 2² × 75 × 2 × 60

U = 8 × 75 × 60

U = 36000 J

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V = IR

V = 2 × 75

V = 150 V

________________________________

W = QV

36000 = Q × 150

Q = 36000/150

Q = 240 C