Question

In a given circuit , the potential difference between points A and Bis 4V. The energy supplied by the source in one minute is

Answer 1

Explanation:

Net resistance, R=1+9+2=12Ω

Net voltage V=12−8=4V

⇒I=

R

V

⇒I=

12

4

=

3

1

∴V

P

+

3

1

×1+8−12+

3

1

×2=V

Q

⇒V

P

−V

Q

=3V