A group of students draws the field lines for an isolated system consisting of two…

PHYSICS · Single correct · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields

Problem

A group of students draws the field lines for an isolated system consisting of two point charges placed 6 cm6\,\text{cm} apart. Their diagram shows the following characteristics: • Six field lines leave charge M and terminate on charge N. • An additional six lines leave charge M and extend outward to infinity. • No field lines originate at infinity and terminate on charge N. Which configuration of charges is most consistent with the diagram? (a) M=+q,  N=−qM = +q,\; N = -q (b) M=+q,  N=−2qM = +q,\; N = -2q (c) M=+2q,  N=−qM = +2q,\; N = -q (d) M=−2q,  N=+qM = -2q,\; N = +q

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