Current Electricity and Electrical InstrumentHard
Question
R =
⇒ R ∝ L2
The equivalent resistance between the points A and B is -

The equivalent resistance between the points A and B is -

Options
A.
B.10 Ω
C.
D.none of these
Solution

Balanced Wheatstone Bridge
As
So RAB =
Create a free account to view solution
View Solution FreeTopic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
Two resistors $2\Omega$ and $3\Omega$ are connected in the gaps of bridge as shown in figure. The null point is obtained...A current of 4.8 Amp. is flowing through a conductor the number of electrons crossing a point in one second will be :-...For the potentiometer arrangement shown in the figure, length of wire AB is 100 cm and its resistance is 9 Ω Find t...The difference in the variation of resistance with temperature in a metal and a semiconductor arises essentially due to ...In fig., if a battery is connected between points A and B, e.m.f E = 18 V, the current flowing through the battery is :-...