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Question

If a current of 1A flows through a circuit for 1.5hrs, then the charge flowing through the conductor is​

A
2.25×1022electrons
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B
2.15×1022electrons
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C
3.25×1022electrons
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D
4.25×1022electrons
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Solution

The correct option is A 2.25×1022electrons
Current =1A
TimeT=1.5hours
Convert in sec we get
Time t=1.5×60×60s=7200s
Using Q=3t
Plugging the valuesQ=0.5A×7200sQ=3600C
Number of electrons= total charge / charge on 1 electron
=3600/(1.6×1019)=2.25×1022electrons

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