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

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

1.	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
Answer» Solution :(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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