(a)
The value of the resistance to use the galvanometer as the ammeter.
(a)
Answer to Problem 56P
The resistance in the parallel for using the galvanometer as ammeter is
Explanation of Solution
Given info:
The sensitivity of the galvanometer is,
The internal resistance of the galvanometer is,
The reading of the ammeter is,
Formula Used:
The expression to calculate the current in the galvanometer is,
The expression to calculate the resistance for using the galvanometer as ammeter is,
Calculation:
Substitute all the values in the above expression.
Substitute all the values in the above expression.
Conclusion:
Thus, the resistance in the parallel for using the galvanometer as ammeter is
(b)
The value of the resistance to use the galvanometer as the voltmeter.
(b)
Answer to Problem 56P
The resistance for using the galvanometer as voltmeter is
Explanation of Solution
Given info:
The voltage at full scale deflection of the voltmeter is,
Formula Used:
The expression to calculate the resistance for using the galvanometer as voltmeter is,
Calculation:
Substitute all the values in the above expression.
Conclusion:
Thus, the resistance for using the galvanometer as voltmeter is
Chapter 19 Solutions
Physics: Principles with Applications
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