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1. |
A resistance R is connected to a voltage source V having internal resistance RI. A voltmeter of resistance R2 is used to measure the voltage across R. The reading of the voltmeter is _____________ |
A. | ( frac{V_S R_1 R_2}{R_2 R_1 + R_1 R + RR_2} ) |
B. | ( frac{V_s R}{R + R_s} ) |
C. | ( frac{VR_1 R_2}{R_1 R_2 R_1 R RR_2} ) |
D. | ( frac{V_S RR_2}{R_1 R_2 + R_1 R + RR_2} ) |
Answer» E. | |