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You have a microammeter which reads 50 A at full scale deflection and the coil...

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Physics

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You have a microammeter which reads 50 A at full scale deflection and the coil in the meter movement has a resistance of 20 ohms By adding two resistors R and R and a 1 5 volt battery you can convert this into an ohmmeter When the two out coming leads of this ohmmeter are connected together the meter is to register ohms by giving exactly full scale deflection When the leads are connected across an unknown resistance R the deflection will indicate the resistance value if the scale is appropriately marked In particular we want half scale deflection to indicate 15 ohms What values of R and R are required how should the connections be made

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