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Question
Define the current sensitivity of a galvanometer ?
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Solution
Current sensitivity of a galvanometer is defined as the deflection in galvanometer per unit current.
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RELATED QUESTIONS
A circular coil of 250 turns and diameter 18 cm carries a current of 12A. What is the magnitude of magnetic moment associated with the coil?
An ideal voltmeter has _______.
(A) low resistance
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Define current sensitivity of a galvanometer.
Write current sensitivity of a galvanomete S.I. unit.
Explain, giving reasons, the basic difference in converting a galvanometer into (i) a voltmeter and (ii) an ammeter?
Outline the necessary steps to convert a galvanometer of resistance RG into an ammeter of a given range ?
The AC voltage across a resistance can be measured using a ______.
A moving coil galvanometer can be converted into an ammeter by ______.
Assertion (A): On Increasing the current sensitivity of a galvanometer by increasing the number of turns may not necessarily increase its voltage sensitivity.
Reason (R): The resistance of the coil of the galvanometer increases on increasing the number of turns.
Select the most appropriate answer from the options given below:
A resistance of 3Ω is connected in parallel to a galvanometer of resistance 297Ω. Find the fraction of current passing through the galvanometer.
