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Question
Assertion :Galvanometer cannot as such be used as an ammeter to measure the value of the current in a given circuit. Reason: Galvanometer gives a full-scale deflection for a current of the order of micro ampere.
Assertion :Galvanometer cannot as such be used as an ammeter to measure the value of the current in a given circuit. Reason: Galvanometer gives a full-scale deflection for a current of the order of micro ampere.
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
A galvanometer is a very sensitive device, it gives a full-scale deflection for the current of the order of microampere. Also for measuring current, the galvanometer has to be connected in series, and as it has a large resistance, this will change the value of the current in the circuit. To overcome these difficulties one attaches a small resistance called shunt resistance in parallel with the galvanometer coi
A galvanometer is a very sensitive device, it gives a full-scale deflection for the current of the order of microampere. Also for measuring current, the galvanometer has to be connected in series, and as it has a large resistance, this will change the value of the current in the circuit. To overcome these difficulties one attaches a small resistance called shunt resistance in parallel with the galvanometer coi
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