Question

Date : / 7 a batte Three unchanged capacitors are connented with a battery in series as shown in the figure. The work done by battery in fully charging the capacitacre will be ​

Answer 1

Answer:

refer the attachment

Explanation:

Three unchanged capacitors are connented with a battery in series as shown in the figure. The work done by battery in fully charging the capacitacre will be

Answer 2

Explanation:

When the switch is open, the equivalent capacitance C 1 =( 24 )μFCharge flown through the battery = 34 ×30=40μCWhen switch is closeC 1′ =2μFq 1 =2×30=60μCHence, 20μC extra charge flows when S is closedWork done by the battery =20×10 −6 ×30=0.6mJWhen switch is closed, it is short circuited. Hence all the charge flows through S.