A current of 0.5A flows through a resistor when connected to a 40-V battery. How much energy is dissipated in 2 minutes?
A
1200J
B
1500J
C
2400J
D
96000J
Verified Correct Answer: C.
Physical Principles & Numerical Solution
Electrical energy = IVT
= 0.5 x 40 x 2 x 60
= 2400J
Source: Myschool Past Questions Archive (Record #28475)