A high-resistance voltmeter reads 3.0V when connected across the terminals of a battery on open circuit and 2.6V when the battery supplies a current of 0.2A through a lamp. The resistance of lamp is
A
2.00\(\Omega\)
B
13.00\(\Omega\)
C
0.52\(\Omega\)
D
0.13\(\Omega\)
E
1.50\(\Omega\)
Verified Correct Answer: B.
Physical Principles & Numerical Solution
IR = 2.6 and Ir = 0.4
0.2 x R = 2.6
R = 13.00\(\Omega\)
Source: Myschool Past Questions Archive (Record #28930)