Home
Class 12
PHYSICS
Three ammeters A,B, and C of resistances...

Three ammeters `A,B`, and `C` of resistances `R_A,R_b` and `R_C` respectively are joined as shown. When some potential difference is appllied across the terminals `T_1` and `T_2` their readings are `I_A,I_B and I_C` respectively Then,

A

`I_(A) = I_(B)`

B

`I_(A)R_(A)+ I_(B)R_(B)= I_(C)R_(C)`

C

`I_(A)/I_(C) = R_(C)/R_(A)`

D

`I_(B)/I_(C) = R_C/(R_A+R_B)`

Text Solution

Verified by Experts

The correct Answer is:
A, B, D
a., b., d.
As A and B are connected in series, hence IA = IB. The potential
difference acorss both the branches will be the same.

`I_(A)R_(B) + I_(B)R_(B) = I_(C)R_(C) or I_(B)/I_(C) = (R_C)/(R_A + R_B)` .
Promotional Banner

Similar Questions

Explore conceptually related problems

Three ammeters 1, 2, and 3 of resistances R_(1). R_(2) and R_(3) respectively are joined as shown. When some potential difference is applied across the terminals P and Q, their readings are I_(1), I_(2) and I_(3) , respectively. Then

A,B and C are voltmeters of resistance R, 1.5 R and 3R respectively as shown in the figure. When some potential difference is applied between X and Y, the voltmeter reading are V_A , V_B and V_C respectively.

Three voltmeters A, B and C having resistances R, 1.5 R and 3 R respectively are used in a circuit as shown. When a potential difference is applied between X and Y, the readings of the voltmeters are V_1, V_2 and V_3 respectively. Then :

A, B and C are voltmeters of resistances R, 1.5R and 3R respectively. When some potential difference is applied between x and y the voltmeter readings are V_A, V _B and V_C, then

In serial L-C-R circuit as shown in figure. The potential difference across A & B is

Three concentric spherical conductors A, B and C of radii R, 2R and 4R respectively. A and C is shorted and B is uniformly charged Potential at A is

Three concentric spherical conductors A, B and C of radii R, 2R and 4R respectively. A and C is shorted and B is uniformly charged . Potential at B is

In the series L-C-R circuit , the voltmeter and ammeter readings are respectively