3 Ω
2 Ω
1 Ω
6 Ω
Correct answer is A
1 = V/R = E/R+r , if r = 2Ω
V = 3/5 E
=> 3E/5R = E/R+2
i.e 3E(R+2) = 5RE
3RE + 6E = 5RE
i.e 3R + 6 = 5R
6 = 5R - 3R
=> 2r = 6 i.e R = 6/2 = 3Ω
The resistance of an open series circuit is ...
Which of the following remains unchanged as light travels from one medium to the other? i. speed....
If the air inside a rigid box is heated, the i. average speed of the molecules increases ii. pre...
Why do soldiers march disorderly while crossing a bridge? ...
The process whereby a liquid turns spontaneously into vapour is called? ...