1.

An infinite number of electric charges each equal to 5 nano - coulombs (magnitude) are placed along X-axis at x = 1 cm, x = 2 cm, X = 4 cm, x = 8 cm ....... and so on. In this setup if the consecutive charges have opposite sign, then the electric field at x = 0 (1/(4 pi epsilon_0) = 9 xx 10^(9) N - m^2//c^2)

Answer»

`12 xx 10^(4) N//C`
`24 xx 10^(4) N//C`
`36 xx 10^(4) N//C`
`48 xx 10^(4) N//C`

ANSWER :C


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