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Keeping the potential difference constant , the resistance of a circuit is halved.  By how much does the current change? 
Asked by pdcavita | 26 Nov, 2017, 09:01: PM
answered-by-expert Expert Answer
 
Current will be doubled
 
straight V equals straight I subscript 1 xR subscript 1 space space straight V equals straight I subscript 2 xR subscript 2 space straight I subscript 1 xR subscript 1 space equals straight I subscript 2 xR subscript 2 space equals straight I subscript 2 straight x straight R subscript 1 over 2 straight I subscript 2 equals fraction numerator straight I subscript 1 xR subscript 1 over denominator straight R subscript 1 over 2 end fraction space equals space 2 straight x space straight I subscript 1
Answered by Gajendra | 27 Nov, 2017, 11:33: AM

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CBSE 10 - Physics
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