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A fully charged capacitor has a capacitance 'c' It. is discharged through a small coil of resistance wire embedded in a thermally insulated block of specific heat capacity 's' arid mass ‘m’ if the temperature of the block is raised by ' ?T ',the potential difference 'V' across the capacitance is (a) mC?T/s (b) v2mC?T/s (c) v2ms?T/C (d) ms?T/C

A fully charged capacitor has a capacitance 'c' It. is discharged through a small coil of resistance wire embedded in a thermally insulated block of specific heat capacity 's' arid mass  ‘m’ if the temperature of the block is raised by ' ?T ',the potential difference 'V' across the capacitance is
 
(a) mC?T/s
(b) v2mC?T/s
(c) v2ms?T/C
(d) ms?T/C

Grade:6

1 Answers

Navjyot Kalra
askIITians Faculty 654 Points
9 years ago

(c) Applying conservation of energy,

½ CV2 = m.s ?t; V = v 2 m.s.?t/C

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