Question

Solved Problem 4: Find the equivalent resistance of the circuit between the terminals A and
B as shown in the figure.
2Ω
1.5Ω
2Ω
A O-
4 Ω
4Ω
5 Ω
2Ω
Bo
2Ω
3 Ω​

Answer 1

Answer:

Bo...............

..

Answer 2

Answer:

Given: V=12V, Resistance of A=4Ω, Resistance of B=6Ω, Internal battery resistance =2Ω

(i) Total Resistance =4+6+2=12Ω

I (current in circuit)=

Totalresistance

e.m.f.

=

12

12

=1amp

(ii) Voltage drop Ir=1×2=2volt

Terminal Voltage = emf - Voltage drop

=12−2=10 volts

(iii) Potential difference across 6Ω=IR

=1×6=6V

(iv) Energy spent =I

2

Rt

=(1)

2

×4×60=240J