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Question

# Five charges of each +q are placed of the five corners of a regular hexagon. The resulant electric field at the centre is E. If the charges in the 1st and 2nd corner are removed, then the resultant electric field at the centre is

A
E
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B
2E
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C
3E
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D
4E
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Solution

## The correct option is B 2E E1=E4;E2=E5 will cancel each other. E3=E If charges at 1st and 2nd corner are removed, E3=E4=E5=E The angle between E3 and E5 is 120∘. Hence the resultant E35=E. The net electric filed at the centre. Enet=E+E4=E+E=2E <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Hence, (b) is the correct answer.

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