Question

Q. how much energy is lost as heat if a fully charged capacitor is connected to identical uncharged capacitor? ​

Answer 1

Answer:

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Explanation:

To find

Initially we consider a charge capacitor; then its charge would be

Q=cv

U

1

=

2

1

CV

2

__(I)

Now the uncharged capacitor is connected to charged capacitor

Then charge flows from 1st capacitor to other capacitor unless both capacitor attain common potential

Q

1

=CV

1

and Q

2

=CV

2

Applying conservation of charge

Q=Q

1

+Q

2

⇒CV=CV

1

+CV

2

⇒V=V

1

+V

2

⇒V=2V

1

⇒V

1

=

2

V

Total energy stored U

2

=

2

1

CV

1

2

+

2

1

CV

2

2

U

2

=

4

1

CV

2

__(II)

eq (II) < eq (I)

So U

2

<U

1

Answer 2

Answer:

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