Two tangent galvanometers having coils of the same radius are connected in series. A current flowing in them produces deflections of `60^(@)` and `45^(@)` respectively. The ratio of the number of turns in the coils is
A
`4//3`
B
`(sqrt(3)+1)//1`
C
`(sqrt(3)+1)//(sqrt(3)-1)`
D
`sqrt(3)//1`
Text Solution
Verified by Experts
The correct Answer is:
D
Topper's Solved these Questions
MAGNETISM
ERRORLESS |Exercise Magnet and it s Properties|15 Videos
MAGNETISM
ERRORLESS |Exercise Earth Magnetism|8 Videos
MAGNETIC EFFECT OF CURRENT
ERRORLESS |Exercise Exercise|394 Videos
RAY OPTICS
ERRORLESS |Exercise SET|25 Videos
Similar Questions
Explore conceptually related problems
Two tangent galvanometer A and B are identical except in their number of turns. They are connected in series. On passing a current through them, deflections of 60^(@) and 30^(@) are produced. The ration of the number of turns in A and B is
Two tangent galvanometer P and Q differ only in the number of turns of their coils and are connected in series. On passing a current through them, the deflections in P and Q are found to gbe 45^(@) and 35^(@) respectively. Calculate the ratio of the number of turns
Two tangent galvanometer A and B differing only in the number of turns in their coils are connected in series. On passing a current through them, the deflections in A and B are 40^(@) and 26.5^(@) respectively. Calculate the ratio of their numbers of turns.
Two tangent galvanometer are connetected in series across a battery. The deflections in them found to be 30^(@) and 60^(@) respectively. The ratio of their reduction factors is
In a tangent galvanometer a current of 0.1 A produces a deflection of 30^(@) . The current required to produce a deflection of 60^(@) is
Two tangent galvanometer P and Q are connected in series and a current is passed through them . Radii of coils of P and Q are in the ratio 4:3 while their number of turns are in ratio 4:9 . If the galvanometer P shows a deflection of 30^(@) , find the deflection shown by Q.
Two tangent galvanometers have coils of the same radii, differing only in their number of turns. They are connected in series. When a steady current is passed in the circuit, the mean deflections in the galvanometer are theta_1 and theta_2 . Deduce an expression for the ratio of number of turns of the galvanometer.
The coil of a tangent galvanometer has 50 turns of mean diameter 20 cm. Find the current required to produce a deflection of 30^(@) . Given B_(H) =0.3 G.
Two tangent galvanometers A and B have coils of radii 8cm and 16cm respectively and resistance 8ohm each. They are connected in parallel to a cell of emf 4V and negligible internal resistance. The deflections produced are 30^@ and 60^@ respectivley. A has 2 turns. What is the number of turns in B?
