Two capacitors c1 and c2 are connected in series
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two capacitors C1 and C2 are connected in series. if potential at A is V1 and at B is V2,the potential atD is
Asked by admin @ in Physics viewed by 278 People
two capacitors C1 and C2 are connected in series. if potential at A is V1 and at B is V2,the potential atD is
Answered by admin @
Answer:
Explanation:
Secondary School Physics 5+3 pts
Two capacitors C1 and C2 are charged to potential V1 and V2 resp. and then connected in parallel. Calculate common potential, charge on each capacitor and energy in the system after connection??
Report by Rush8192 18.01.2019
Answers
gadakhsanket
Gadakhsanket★ Brainly Teacher ★
Hello Buddy,
◆ Answer -
¶ V = (C1V1+C2V2)/(C1+C2)
¶ Q1 = C1(C1V1+C2V2)/(C1+C2)
¶ Q2 = C2(C1V1+C2V2)/(C1+C2)
¶ E = (C1V1+C2V2)^2 /2(C1+C2)
◆ Explaination -
When capacitors are separated, total charge on capacitors
Qi = C1V1 + C2V2
When capacitors are connected in parallel with voltage V, total charge is
Qf = (C1+C2)V
By law of conservation of momentum,
Qi = Qf
C1V1 + C2V2 = (C1+C2)V
V = (C1V1+C2V2)/(C1+C2)
Charge on capacitor 1 is -
Q1 = C1V
Q1 = C1(C1V1+C2V2)/(C1+C2)
Charge on capacitor 2 is -
Q2 = C2V
Q2 = C2(C1V1+C2V2)/(C1+C2)
Energy in the system is calculated by-
E = 1/2 (C1+C2)V^2
E = (C1V1+C2V2)^2 /2(C1+C2)
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