In a circuit diagram containing an ammeter, a resistor of 2 ohm in series with a combination of 2 resistors (4 ohm each) in parallel and a voltmeter across the parallel combination, will the potential difference across the 2 ohm resistor be the same as that across the parallel combination of 4 ohm resistors? Give reason.
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Yes
Since the equivalent resistance of the two 4 ohm resistors will be 2 ohm which is same as that of the resistor in series.
Hence the equivalent circuit is two 2 ohm resistors in series and the potential drop will be same across the two equivalent resistors.
Since the equivalent resistance of the two 4 ohm resistors will be 2 ohm which is same as that of the resistor in series.
Hence the equivalent circuit is two 2 ohm resistors in series and the potential drop will be same across the two equivalent resistors.
manasviranjan:
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Answer:
Thus, resistance of parallel combination is equal to resistance of resistors in series. So, potential difference across 20 resistance will be same as potential difference across the
other two resistors which are connected in parallel.
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