Current Electricity and Electrical InstrumentHard

Question

How will the reading in the ammeter A of figure be affected if another identical bulb Q is connected is parallel to P as shown. The voltage in the mains in maintained at a constant value.

Options

A.The reading will be reduced to one - half
B.The reading will be affected
C.The reading will be doubled of the  previous one
D.The reading will be increased four-fold

Solution

Resistance is halved. Current is doubled.

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