Home
Class 12
PHYSICS
The potential difference between A and B...

The potential difference between A and B is V. The values of some resistances are shown. The other resistance are equal in values. What should be the value of each of these resistances so that current in circuit is `V//3R`.

A

`R//3`

B

R

C

`R//6`

D

3R

Text Solution

Verified by Experts

The correct Answer is:
D
d. `R_(eq) = V/I = (V xx 3R)/V = 3R`
Hence equivalent resistance of three parallel resistances should
be `3R - 2R = R`
`1/R = 1/x + 1/x + 1/x`
or `x/3 = R or x = 3R`
Promotional Banner

Similar Questions

Explore conceptually related problems

What is the value of the resistance R_(1) in the following circuit ?

If the potential difference between A and D is V, what will be potential difference between F and C. each of the resistance is R.

The current enters at A and leaves at F. The values of some resistance are shown. What should be the value of resistance AB so that no current will flow through CB?

In the circuit shown in figure the total resistance between points A and B is R_0 . The value of resistance R is

In the circuit shown in fig. some potential difference is applied between A and B. The equivalent resistance between A and B is R.

In the given circuit, it is observed that the current I is independent of the value of the resistance R_6 . Then the resistance values must satisfy .

Thirteen resistances each of resistance R ohm are connected in the circuit as shown in the figure below. The effecitve resistance between A and B is