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Figure shows the electric field lines ar...

Figure shows the electric field lines around three point charges A, B and C.

(a) Which charges are positive ?
(b) Which charge has the largest magnitude ? Why ?
In which region or regions of the picture could the electric field be zero ? Justify your answer.
(i) Near A, (ii) Near B
(iii) Near C, (iv) Nowhere

Text Solution

Verified by Experts

(i) Electric field lines of A and C are outwards. Hence, charges of A and C are positive.
(ii) No. of Electric field lines from C is maximum. Hence, magnitude of charge C is maximum.
(iii) Electric field lines of like charges are opposite to each other. Hence, the electric field can be zero between A and C only.
The magnitude of charge at C is greater than that at A. Hence, the electric field is zero at point near A.
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