two wires have same material and same length,their cross sectional are in ratios 3:1.they are joined in series.If the resistance of thicker wire is 10ohm,then total resistance of combination is ? a)7.5ohm,b)40ohm,c)20ohm,d)10ohm
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Answer is option b) 40
dilip037:
thanks
but please,can you answer it with step
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hope it helps genius
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thanks bro
my pleasure
the potential difference is applied across the ends of metallic wire,if potential difference is doubled,the drift velocity will be? a) doubled b)half c)quater of length d) remains the same
please answer with step
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