Home
Class 12
PHYSICS
Two tangent galvanometers having coils o...

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

`(sqrt3+1)/(1)`

C

`(sqrt+1)/(sqrt-1)`

D

`(sqrt3)/(1)`

Text Solution

Verified by Experts

The correct Answer is:
d

(d) In series, same current flows through two tangent galvanometers.
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MATTER

    DISHA PUBLICATION|Exercise EXERCISE-2:CONCEPT APPLICATOR|31 Videos
  • MAGNETISM AND MATTER

    DISHA PUBLICATION|Exercise EXERCISE-2:CONCEPT APPLICATOR|31 Videos
  • LAWS OF MOTION

    DISHA PUBLICATION|Exercise Exercise-2 : Concept Applicator|30 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    DISHA PUBLICATION|Exercise EXERCISE-2 CONCEPT APPLICATOR|24 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?

DISHA PUBLICATION-MAGNETISM AND MATTER-EXERCISE-1:CONCEPT BUILDER (TOPICWISE)
  1. Nickel shows ferromagnetic property at room temperature. If the temper...

    Text Solution

    |

  2. If a diamagnetic substance is brought near north or south pole of a ba...

    Text Solution

    |

  3. A paramagnetic material is placed in a magnetic field. Consider the fo...

    Text Solution

    |

  4. When a ferromagnetic material is heated to temperature above its Curie...

    Text Solution

    |

  5. The magnetic moment of a magnet (15cmxx2cmxx1cm) is 1.2A-m^(2). Calcul...

    Text Solution

    |

  6. Needles N(1) , N(2), and N(3) are made of a ferromagnetic, a paramagne...

    Text Solution

    |

  7. Three identical bars A, B and C are made of different magnetic materia...

    Text Solution

    |

  8. Relative permitivity and permeability of a material epsilon(r) and mu(...

    Text Solution

    |

  9. IF the current is doubled, the deflection is also doubled in

    Text Solution

    |

  10. To measure the magnetic moment of a bar magnet, one may use

    Text Solution

    |

  11. A bar magnet of moment of inertia 9xx10^(-5) kgm^(2) placed in a vibra...

    Text Solution

    |

  12. If the period of oscillaion of freely suspended bar magnet in earth's...

    Text Solution

    |

  13. A thin rectangular magnet suspnded freely has a period of oscillation ...

    Text Solution

    |

  14. The time period of oscillation of a freely suspended bar magnet with u...

    Text Solution

    |

  15. Two tangent galvanometers having coils of the same radius are connecte...

    Text Solution

    |

  16. The perio of oscillation of a magnet in vibration magnetometer is 2 se...

    Text Solution

    |

  17. Two magnets of magnetic moments M and 2M are placed in a vibration mag...

    Text Solution

    |

  18. Two tangent galvanometers A and B have coils of radii 8cm and 16cm res...

    Text Solution

    |

  19. The magnetic needle of a tangent galvanometer is deflected at an angle...

    Text Solution

    |

  20. If theta1 and theta2 are two solutions of the equation a cos 2theta + ...

    Text Solution

    |