In the given figure, charge +Q is placed at the centre of a dotted cir

1.	In the given figure, charge +Q is placed at the centre of a dotted circle. Work done in taking another charge +q from A to B is W1 and from B to C is W2. Which one of the following is correct : W2>W1 ; W1 = W2; W1>W2?
Answer» As charge +Q is at the center of the circle, Therefore, V_A = V_C If V_B is potential at point B, Then, V_B = V_A = V_B- V_C ∴ W_AB = Q(V_B - V_A) = W₁ W_BC = Q(V_B - V_C) = W₂ ∴ Numerically, W₁ = W₂

In the given figure, charge +Q is placed at the centre of a dotted circle. Work done in taking another charge +q from A to B is W1 and from B to C is W2. Which one of the following is correct : W2>W1 ; W1 = W2; W1>W2?

Answer»

As charge +Q is at the center of the circle,

Therefore,

V_A = V_C

If V_B is potential at point B,

Then,

V_B = V_A = V_B- V_C

∴ W_AB = Q(V_B - V_A) = W₁

W_BC = Q(V_B - V_C) = W₂

∴ Numerically,

W₁ = W₂

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In the given figure, charge +Q is placed at the centre of a dotted circle. Work done in taking another charge +q from A to B is W1 and from B to C is W2. Which one of the following is correct : W2&gt;W1 ; W1 = W2; W1&gt;W2?

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In the given figure, charge +Q is placed at the centre of a dotted circle. Work done in taking another charge +q from A to B is W1 and from B to C is W2. Which one of the following is correct : W2>W1 ; W1 = W2; W1>W2?