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4 xx 10 ^(10) electrons are removed from...

`4 xx 10 ^(10)` electrons are removed from a neutral metal sphere of diameter 20 cm placed in air . The magnitude of the electric field in `(N C^(-1))` at a distance of 20 cm from its centre is

A

640

B

5760

C

zero

D

1440

Text Solution

Verified by Experts

The correct Answer is:
D
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