a potential difference of 20 ohms has a current of 2 ampere is flowing in it and so what potential difference is there between it its ends?
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Mmmmmmm Error... Potential Difference cannot be Measured as "Ohms" and as far as the true question is considered :
Resistance given = 20ohms
Current = 2A
=> Potential Difference = 2 * 20 volts = 40 V
Resistance given = 20ohms
Current = 2A
=> Potential Difference = 2 * 20 volts = 40 V
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