Home
Class 12
PHYSICS
A rectangular coil of 20 turns and area ...

A rectangular coil of 20 turns and area of cross-section 25sq. Cm has a resistance of `100 Omega`. If a magnetic field which is perpendicular to the plane of coil changes at a rate of 1000 tesla per second, the current in the coil is

A

`1.0` ampere

B

50 ampere

C

`0.5` ampere

D

`5.0` ampere

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION & ALTERNATIVE CURRENT

    VMC MODULES ENGLISH|Exercise ENABLE|50 Videos
  • ELECTROMAGNETIC INDUCTION & ALTERNATIVE CURRENT

    VMC MODULES ENGLISH|Exercise EFFICIENT|49 Videos
  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-G|10 Videos
  • ELECTROSTATICS

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive)|89 Videos

Similar Questions

Explore conceptually related problems

A rectangular coil of 20 turns and area of cross-section 25 cm^(2) has a resistance of 100 ohm . If a magnetic field which is perpendicular to the plane of the coil changes at the rate of 1000 telsa per second, the current in the coil is

A coil of area 10cm^2 and 10 turns is in magnetic field directed perpendicular to the plane and changing at a rate of 10^8 gauss//s . The resistance of coil is 20Omega . The current in the coil will be

A coil of area 10cm^2 and 10 turns is in magnetic field directed perpendicular to the plane and changing at a rate of 10^8 gauss//s . The resistance of coil is 20Omega . The current in the coil will be

A rectangular coil is placed in a region having a uniform magnetic field B perpendicular to the plane of the coil. An emf will not be induced ion the coil if the

Find the direction of induced current in the coil shown in figure.Magnetic field is perpendicular to the plane of coil and it is increasing with time.

A circular coil of 200 mm diameter is made of 100 turns of thin wire and carries a current of 50 mA. Find the magnetic field induction at the centre of the coil.

A closed coil consists of 500 turns has area 4 cm^2 and a resistance of 50 Omega . The coil is kept with its plane perpendicular to a uniform magnetic field of 0.2 Wb/m^2 . Calculate the amount charge flowing through the coil if it is rotated through 180^@

A circular coil of 25 turns and radius of 12 cm is placed in a uniform magnetic field of 0.5 T normal to the plane of coil. If the current in the coil is 5 A, then total torque experienced by the coil is

A coil consists of 200 turns of wire having a total reistance of 2.0Omega . Each turn is a square of side 18cm, and a uniform magnetic field directed perpendicular to the plane of the coil is turned on. If the field changes linearly from 0 to 0.5t in 0.80s , what is the magnitude of induced emf and current in the coil while the field is changing?

A coil consists of 200 turns of wire having a total reistance of 2.0Omega . Each turn is a square of side 18cm, and a uniform magnetic field directed perpendicular to the plane of the coil is turned on. If the field changes linearly from 0 to 0.5T in 0.80s , what is the magnitude of induced emf and current in the coil while the field is changing?

VMC MODULES ENGLISH-ELECTROMAGNETIC INDUCTION & ALTERNATIVE CURRENT -IMPECCABLE
  1. A rectangular coil of 20 turns and area of cross-section 25sq. Cm has ...

    Text Solution

    |

  2. The turn ratio of a transformers is given as 2:3. If the current throu...

    Text Solution

    |

  3. A transformer with efficiency 80% works at 4 kW and 100 V. If the seco...

    Text Solution

    |

  4. In the induction coil, across secondary coil the output voltage is pra...

    Text Solution

    |

  5. The number o turns of primary and secondary coils of a transformer ar...

    Text Solution

    |

  6. If a transfomer of an audio amplifier has output impedance 8000Omega a...

    Text Solution

    |

  7. The coefficient of mutual inductance between the primary and secondar...

    Text Solution

    |

  8. Quantity that remains unchanged in a transformer is

    Text Solution

    |

  9. What is the peak value of the voltage of a 220V ac line?

    Text Solution

    |

  10. If reading of an ammeter is 10 A, the peak value of current is

    Text Solution

    |

  11. In an AC circuit, the impedance is sqrt3 times the reactance, then the...

    Text Solution

    |

  12. An alternating potential V = underset(o)(V) sin omegat is applied acro...

    Text Solution

    |

  13. An Ac voltage is represented by e=220 sin (100pi) t volt and is applie...

    Text Solution

    |

  14. If an AC produces same heat as that produced by a steady current of...

    Text Solution

    |

  15. The potential difference V and the current I flowing through an ins...

    Text Solution

    |

  16. An alternating current is given by I = i1 cos omegat + i2 sin omegat...

    Text Solution

    |

  17. Core of transformer is made up

    Text Solution

    |

  18. A transformer works on the principle of

    Text Solution

    |

  19. A transformer has an efficiency of 80%. It works at 4 kW and 100 V. If...

    Text Solution

    |

  20. In a step - down transformer, the number of turns in

    Text Solution

    |

  21. A step-up transformer operates on a 230 V line and supplies a current ...

    Text Solution

    |