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An electric current of 2A flows through...

An electric current of 2A flows through a circuit consisting of a bulb. Find the number of electrons that would pass through the bulb in 8 minutes.

Text Solution

Verified by Experts

We are given,
`I=2A` and `t=8` minutes `=8xx60 s = 480 s `
`:. Q = It`
`=(2A)xx(480 s)=960 C`
1 C charge corresponds to `6.25xx10^(18)` electrons
`:. 960 C` charge corresponding to `960 xx 6.25 xx 10^(18)` electrons `=6000xx10^(18)` electrons
`=6xx10^(21)` electrons.
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