Question

An ammeter and voltmeter are joined in series to a cell their readings are a and b respectively if our existence is not joined in parallel with the voltmeter then

Answer 1

Answer:

When a resistance is joined in parallel with a voltmeter, the net resistance of the circuit decreases, hence the current increases. The potential difference across the ammeter increases (due to more current) and hence, potential difference across the voltmeter decreases (source EMF is constant).

Explanation:

Answer 2

Answer:

Hi Friend

Explanation:

When a resistance is joined in parallel ,the net resistance decreases as a result current (I )increases bcz resistance is inversely proportional to current R=V/I .

And similarly the potential decrease as resistance decrease bcz potential is directly proportional to potential.

A will increase and V will decrease .

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