1.

An electric field 'E' whose direction is radially outward varies as distance from origin 'r' as shown in the graph E is taken as positive if its direction is away from the origin. Then the work done by electric field on a 2 C charge if it is taken from (1,1,0) to (3,0,0) is :

Answer»

`20 (3 + SQRT(2))J`
`-60 J`
`60 J`
`20 (3- sqrt(2))J`

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