Question Detail

PHY 102 Test Compilation PHY 102 5 Objective Question

Question

6V battery supplies 48W to two identical headlights in parallel. Resistance of each bulb?
Options
A 0.67 Ω
B 1.5 Ω
Correct Answer
C 3 Ω
D 4 Ω
Correct Answer

Option B is the correct answer.

Detailed Explanation

Total current I = P/V = 48/6 = 8 A. Each bulb gets 4 A. R_bulb = V/I = 6/4 = 1.5 Ω.

Hint

Parallel: same V, I splits equally.

Question Info