6 A series type ohmmeter, designed to operate with a 9-V battery, the meter movement has an internal resistance of 2000 ohm and requires a current of 100 μA for full scale deflection. The value of R1 is 49KQ. a) Assuming the battery voltage has fallen to 8.8 V, calculate the value of R2 required to zero the meter? b) Under the conditions mentioned in part a, an unknown resistor is connected to the meter causing a 60 per cent meter deflection. Calculate the value of the unknown resistance?

6 A series type ohmmeter, designed to operate with a 9-V battery, the meter movement has an internal resistance of 2000 ohm and requires a current of 100 μA for full scale deflection. The value of R1 is 49KQ. a) Assuming the battery voltage has fallen to 8.8 V, calculate the value of R2 required to zero the meter? b) Under the conditions mentioned in part a, an unknown resistor is connected to the meter causing a 60 per cent meter deflection. Calculate the value of the unknown resistance?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter12: Batteries And Other Sources Of Electricity

Section: Chapter Questions

Problem 14RQ: 14. A 6-V lead-acid battery has an A-hr rating of 180 A-hr. The battery is to be load-tested. What...

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