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Question: Four condensers each of capacity \(4 \mu F\) are connected as shown in figure. \(V _ { P } - V _ ...

Four condensers each of capacity 4μF4 \mu F are connected as shown in figure. VP−VQ=15V _ { P } - V _ { Q } = 15 volts . The energy stored in the system is

A

2400 ergs

B

1800 ergs

C

D

Answer

1800 ergs

Explanation

Solution

Total capacitance of given system Ceq=85μFC _ { e q } = \frac { 8 } { 5 } \mu F

=180×10−6×107erg=1800erg= 180 \times 10 ^ { - 6 } \times 10 ^ { 7 } \mathrm { erg } = 1800 \mathrm { erg }