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CBSE Class 10 Answered

Why voltmeter is applied in parallel not in series
Asked by harshshruti706865565pandey | 24 Oct, 2018, 03:37: PM
answered-by-expert Expert Answer
Voltmeter consists of a high resistance connected in series to a moving coil galvanometer as shown in figure.
Hence when it is connected in parallel it draws very less current to operate the moving coil galvanometer to indicate
the voltage of electrical power source. At same time, by drawing negligible current, it is not disturbing the
other electrical loads in the circuit.
 
If it is connected series with other loads, the high resistance reduces the current  and this reduced current
will pass through other loads that is undesirable for the operation of other loads.
Answered by Thiyagarajan K | 25 Oct, 2018, 07:44: PM

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