# Please solve both the questions . ​Q7. The current through S when it is closed in the circuit is        (A) 4.8 A        (B) 2.4 A        (C) 1.2 A        (D) 0.6 A Q8. A voltmeter has a resistance of 1800 $\mathrm{\Omega }$ is used to measure the potential difference across a 200 $\mathrm{\Omega }$ resistor which is connected to the terminals of a DC power supply having an emf of 50 V and an internal resistance of 20 ​$\mathrm{\Omega }$. Find the percentage decrease in the potential difference across the 200 ​$\mathrm{\Omega }$ resistor as a result of connected the voltmeter across is?    (A) 1 %                           (B) 5 %                      (C) 10 %                         (D) 25%

Dear Student,
Q.7

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