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n charges Q,4Q,9Q,16Q…. are placed at di...

`n` charges `Q,4Q,9Q,16Q….` are placed at distance of `1,2,3…..` metre form a point `0,`on the same straight line .The electric intensity at `0` is

A

`Q/(4 pi epsilon_(0)n^(2))`

B

`Q/(4 pi epsilon_(0)n)`

C

Infinity

D

`(nQ)/( 4 pi epsilon_(0))`

Text Solution

Verified by Experts

The correct Answer is:
D
`E=1/(4 pi epsilon_(0)) . [(Q_(1))/(x_(1)^(2))+(Q_(2))/(x_(2)^(2))+………..+(Q_(u))/(x_(e)^(2))]`
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NARAYNA-ELECTRIC CHARGES AND FIELDS-EXERCISE -2 (H.W)
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