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
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Correct Answer: Option B
Explanation:
IR = 2.6 and Ir = 0.4
0.2 x R = 2.6
R = 13.00\(\Omega\)
IR = 2.6 and Ir = 0.4
0.2 x R = 2.6
R = 13.00\(\Omega\)