Concept explainers
(a)
The value of the resistance to use the galvanometer as the ammeter.
(a)
Answer to Problem 55P
The resistance for using the galvanometer as ammeter is
Explanation of Solution
Given info:
The internal resistance of the galvanometer is,
The current in the galvanometer at full scale deflection is,
The reading of the ammeter is,
Formula Used:
The expression to calculate the resistance for using the galvanometer as ammeter is,
Calculation:
Substitute all the values in the above expression.
Conclusion:
Thus, the resistance for using the galvanometer as ammeter is
(b)
The value of the resistance to use the galvanometer as the voltmeter.
(b)
Answer to Problem 55P
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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