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ABC is a right-angled triangle, where AB and BC are 25 cm and 60 cm, respectively. A metal sphere of 2 cm radius charged to a potential of 9 × $10^{5}$ V is placed at B as in Fig. Find the amount of work done in carrying a positive charge of 1 coulomb from C to A.

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Detailed Solution

Find potential at A and C due to charge at B, then the required work done is $W = q (V_{A} - V_{C}) .$

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