1.

The number of electric field lines emerged out from 1muC charge is .......

Answer»

`1.13 xx 10^(11)`
`1.13 xx 10^(5)`
`9 xx 10^(9)`
`9 xx 10^(-8)`

Solution :`1.13 xx 10^(8)`
`N =q/epsilon_(0) =10^(-3)/(8.85 xx 10^(-12))`
`THEREFORE N = 0.11299 xx 10^(12.3) =1.13 xx 10^(8)`


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