Three charges q1- q2 and q3 creates electric field -E- - -1- at some point P- If q2 is replaced by -q2 and the field at point P is -E- - -2- - then always-

The correct option is C None of the above E_1 = kq_1r_1^2+ kq_2r_2^2+kq_3r_3^3 E_2 = kq_1r_1^2 kq_2r_2^2+kq_3r_3^3 depending on q_2 there can b ...

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Byju's Answer

Standard XII

Physics

Charging by Induction

Three charges...

Question

Three charges $q_{1}, q_{2}$ and $q_{3}$ creates electric field $\sum_{1}$ at some point $P$ . If $q_{2}$ is replaced by $- q_{2}$ and the field at point $P$ is $\sum_{2} =$ then always-

∣ ∣_{1} ∣ ∣ = ∣ ∣_{2} ∣ ∣

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∣ ∣_{1} ∣ ∣ > ∣ ∣_{2} ∣ ∣

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∣ ∣_{1} ∣ ∣ < ∣ ∣_{2} ∣ ∣

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None of the above

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Solution

The correct option is C None of the above
$E_{1} = \frac{k q_{1}}{r_{1}^{2}} + \frac{k q_{2}}{r_{2}^{2}} + \frac{k q_{3}}{r_{3}^{3}}$
$E_{2} = \frac{k q_{1}}{r_{1}^{2}} - \frac{k q_{2}}{r_{2}^{2}} + \frac{k q_{3}}{r_{3}^{3}}$
depending on $q_{2}$ there can be three cases $E_{1} = E_{2}, E_{1} > E_{2} o r E_{1} < E_{2}$

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Three charges q1,q2 and q3 creates electric field ∑→E1 at some point P. If q2 is replaced by −q2 and the field at point P is ∑→E2= then always-

The correct option is C None of the aboveE1=kq1r21+kq2r22+kq3r33E2=kq1r21−kq2r22+kq3r33depending on q2 there can be three cases E1=E2,E1>E2orE1<E2

Three charges $q_{1}, q_{2}$ and $q_{3}$ creates electric field $\sum_{1}$ at some point $P$ . If $q_{2}$ is replaced by $- q_{2}$ and the field at point $P$ is $\sum_{2} =$ then always-