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udit narayan mishra

· started a discussion

· 1 Months ago

q 152 (Question:138246.0)

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Question:

In an electric circuit, a cell, a variable resistance R and Ammeter are connected in series. A voltmeter connected with the variable resistance to measure the voltage across the wire R and at one instant the reading of Ammeter and voltmeter are 0.3A and 0.9V respectively. At other instant the value of Ammeter and Voltmeter are 0.25A and 1.0 volt for other value of R. The internal resistance of the cell will be

Options:
A) 3.4\(\Omega\)
B)

4.3\(\Omega\)

C) 2.00\(\Omega\)
D)

4.6\(\Omega\)

Solution:
Ans: (c) 

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