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Two charges - q and + q are located at p...

Two charges - q and + q are located at points A(0, 0, -a) and B(0, 0, +a) respectively. How much work is done in moving a test charge from point P(7,0,0) to Q(-3,0,0) ?

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The charges –q and + located at points A(0,0,-a) and B(0, 0, +a) constitute an electric dipole. Point P(7,0,0) and Q(-3,0,0) both lie at the equatorial line of this dipole. Therefore `V_P = V_Q` =0. As a result work done in moving a test charge go from point P to Q
`W = q_0[V_Q-V_p] = q_0[0-0]=0`
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U-LIKE SERIES-ELECTROSTATIC POTENTIAL AND CAPACITANCE -SHORT ANSWER QUESTIONS
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  2. Can two equipotential surfaces intersect each other? Give reasons.

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  3. Two charges - q and + q are located at points A(0, 0, -a) and B(0, 0, ...

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  4. Draw 3 equipotential surfaces corresponding to a field that uniformly ...

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  5. Draw the equipotential surfaces due to an electric dipole. Locate the ...

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  6. wo uniformly large parallel thin plates having charge densities +sigma...

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  8. Two point charges 10 muC and -10 muC are separated by a distance of 40...

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  9. Two point charges + 4 muC and -2 muC are separated by a distance of 1...

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  10. Two point charges, q1 = 10 xx 10^(-8) C and q2 = -2 xx 10^(-8) C, are...

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  11. Two point charges, q1 = 10 xx 10^(-8) C and q2 = -2 xx 10^(-8) C, are...

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  12. Two closely spaced equipotential surfaces A and B with potentials V an...

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  13. Derive an expression for the potential energy of an electric dipole of...

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  15. In a quark model of elementary particles, a neutron is made of one up ...

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  16. Explain the working principle of a parallel plate capacitor.

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  17. Define dielectric constant of a medium. Briefly explain why the capaci...

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  18. Derive an expression for the energy stored in a charged parallel plate...

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  19. Net capacitance of three identical capacitors in series is 1 muF. What...

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