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Solution


Q.

In a certain region of space with volume 0.2 m3, the electric potential is found to be 5 V throughout. The magnitude of electric field in this region is         [2020]
1 zero  
2 0.5 N/C  
3 1 N/C  
4 5 N/C  

Ans.

(1)

Electric field in a region, E=-dVdr

But here electric potential is constant. Therefore electric field will be zero.