Question 457: Current Electricity

Question

A resistor dissipates 192 J of energy in 1s when a current of 4A is passed through it. Now, when the current is doubled, the amount of thermal energy dissipated in 5s in _________ J.

Accepted Answer

E = i
2
Rt
192 = 16 (R) (1)
R = 12$$\Omega$$
E
1
= (8)
2
(12) (5)
= 3840 J

Current Electricity

A resistor dissipates 192 J of energy in 1s when a current of 4A is passed through it. Now, when the current is doubled, the amount of thermal energy dissipated in 5s in _________ J.

Choose the correct answer: