Question: Q. 9. In the given circuit, with steady current, calculate the potential difference across the capacitor and the charge stored in it.

U [Foreign III 2017]

Show Answer

Solution:

Ans. Value of current

Value of voltage

Value of charge

Try yourself, Similar to Q. 7 Short Answer Type II

[CBSE Marking Scheme 2017]

[AI Q. 10. (i) Find equivalent capacitance between A and B in the combination given below. Each capacitor is of 2μF capacitance.

(ii) If a DC source of 7 V is connected across AB, how much charge is drawn from the source and what is the energy stored in the network ? U[Delhi I 2017]

Ans. (i) Calculation of equivalent capacitance 1

(ii) Calculation of charge and energy stored 1+1

(i) Capacitors C2,C3, and C4 are in parallel

C234=C2+C3+C4

C234=6μF

Capacitors C1,C234, and C5 are in series

1Ceq =1C1+1C234+1C5 =12+16+12=76μF Ceq =67μF

(ii) Charge drawn from the source

Q=CeqV =67×7μC=6μC

Energy stored, U=Q22Ceq

=6×6×1012×72×6×106 J

=21μJ



विषयसूची

जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक