A conducting sphere of radius R carrying charge Q lies inside an uncharged conducting…
Physics · Class 12 · CBSE — Electrostatic Potential & Capacitance
A conducting sphere of radius R carrying charge Q lies inside an uncharged conducting shell of radius 2R. If they are joined by a metal wire, the amount of heat that will be produced is
- \(\frac{1}{4 \pi \varepsilon_{0}} \cdot \frac{Q^{2}}{4 R}\)
- \(\frac{1}{4 \pi \varepsilon_{0}} \cdot \frac{Q^{2}}{2 R}\)
- \(\frac{1}{4 \pi \varepsilon_{0}} \cdot \frac{Q^{2}}{R}\)
- \(\frac{2}{4 \pi \varepsilon_{0}} \cdot \frac{Q^{2}}{3 R}\)
Answer
(A) 1 4 _ 0 Q^ 2 4 R
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