Home
Class 12
PHYSICS
Two tangent galvanometers A and B have c...

Two tangent galvanometers A and B have coils of radii 8 cm and 16 cm respectively and resistance `8 Omega` each. They are connected in parallel with a cell of emf 4 V and negligible internal resistance. The deflectioins porduced in the T.G.’s A and B are `30^@` and `60^@` respectively. If A has 2 turns, then B must have

A

6 turns

B

2 turns

C

18 turns

D

12 turns.

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

Two tangent galvanometers, which are identical except in their number of turns are connected in parallel. The ratio of their resistances of the coils is 1 : 3 . If the deflections in the two tangent galvanometers are 30^(@) and 60^(@) respectively, then the ratio of their number of turns is

Two tangent galvanometers, which are identical except in their number of turns, are connected in parallel. The ratio of their resistance of the coils is 1 : 3 . If the deflections in the two tangent galvanometers are 30^@ and 60^@ respectively, then the ratio of their number of turns is

Three resistor 4 Omega , 6 Omega and 8 Omega , are combined in parallel.If the combination is connected to a battery of emf 25 V and negligible Internal resistance, then determine the current through each resistor and total current drawn from the battery.

Three resistors 2Omega, 4Omega and 5Omega are connected in parallel.If the combination is connected to a battery of emf 20 V and negligible internal resistance, determine the current through each resistor and the total current drawn from the battery.

Two cells of 6 V and 4 V having internal resistance of 3 Omega and 2 Omega respectively are connected in parallel so as to send a current through an external resistance 8 Omega in the same direction. Find the current through the cells and the current through the external resistance.

Two cells of emf 2V and 4V and internal resistance 1Omega and 2Omega respectively are connected in parallel so as to send the current in the same direction through an external resistance of 10Omega . Find the potential difference across 10Omega resistor.