8. A dc microammeter with an internal resistance of 250 2 and a full-scale deflection current of 500 μA indicates a current of 300 μA when connect- ed into a circuit consisting of a 1.5-V dry cell and an unknown resistance. Determine the value of the unknown resistance.
8. A dc microammeter with an internal resistance of 250 2 and a full-scale deflection current of 500 μA indicates a current of 300 μA when connect- ed into a circuit consisting of a 1.5-V dry cell and an unknown resistance. Determine the value of the unknown resistance.
Introductory Circuit Analysis (13th Edition)
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Author:Robert L. Boylestad
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Transcribed Image Text:8. A dc microammeter with an internal resistance of 250 2 and a full-scale
deflection current of 500 μA indicates a current of 300 μA when connect-
ed into a circuit consisting of a 1.5-V dry cell and an unknown resistance.
Determine the value of the unknown resistance.
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