Home
Class 12
PHYSICS
Some magnetic flux is changed from a coi...

Some magnetic flux is changed from a coil resistance `10Omega`. As a result an induced current developed in it which varies with time as shown figure, The magnitude of changes f in flux through the coil (in webers) is

A

2

B

4

C

6

D

8

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    DC PANDEY ENGLISH|Exercise Level 2 Subjective|10 Videos
  • ATOMS

    DC PANDEY ENGLISH|Exercise MEDICAL ENTRANCES GALLERY|42 Videos

Similar Questions

Explore conceptually related problems

Some magnetic flux is changed from a coil of resitance 10 Omega . As a result, an induced current is developed it, which varies with time as shown in Fig. 3.213. Find the magnitude of the change in flux through ythe coil in weber.

In a coil of resistance 10 Omega , the induced current developed by changing magnetic flux through it, is shown in figure as a function of time. The magnitude of change in flux through the coil in Weber is -

In a coil of resistance 100 Omega , a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is

The current in a coil varies with time as shown in the figuro. The variation of induced emf with time would be

Current (i) passing through a coil varies with time t as i=2t^(2) . At 1 s total flux passing through the coil is 10 Wb. Then

The resistance of a coil is 5 ohm and a current of 0.2A is induced in it due to a varying magnetic field. The rate of change of magnetic flux in it will be-

When current in a coil changes with time, how is the back e.m.f. induced in the coil related to it ?

If the flux of magnetic induction through each turn of a coil of resistance R and having N turns changes from phi_(1) to phi_(2) then the magnitude of the charge that passes through the coil is

A flexible wire bent in the form of a circle is place in a uniform magnetic field perpendicularly to the plane of the coil. The radius of the coil changes as shown in Figure. The graph of magnetude of induced emf in the coil is represented by

A flexible wire bent in the form of a circle is place in a uniform magnetic field perpendicularly to the plane of the coil. The radius of the coil changes as shown in Figure. The graph of magnetude of induced emf in the coil is represented by

DC PANDEY ENGLISH-ALTERNATING CURRENT-JEE MAIN
  1. The ratio of time constant during current growth and current decay of...

    Text Solution

    |

  2. In an L-R circuit connected to a battery of constant emf E, switch is ...

    Text Solution

    |

  3. Some magnetic flux is changed from a coil resistance 10Omega. As a res...

    Text Solution

    |

  4. Two circular coils A and B are facing each other in shown figure. The ...

    Text Solution

    |

  5. Two coils are at fixed location: When coil 1 has no corrent and the cu...

    Text Solution

    |

  6. Two identical coaxial circular loops carry a current i each circulatin...

    Text Solution

    |

  7. Two coil A and B have coefficient of mutual inductance M=2H. The magne...

    Text Solution

    |

  8. A square coil ABCD lying in x-y plane with its centre at origin. A lon...

    Text Solution

    |

  9. A conducting rod AB of length l=1m is moving at a velocity vA=4m//s ma...

    Text Solution

    |

  10. A cylindrical space of radius R is filled with a uniform magnetic indu...

    Text Solution

    |

  11. A semicircle conducting ring of radius R is placed in the xy plane, as...

    Text Solution

    |

  12. A rod of length 10 cm made up of conducting and non-conducting materia...

    Text Solution

    |

  13. Power factor in series LCR circuit at reasonance is

    Text Solution

    |

  14. In the circuit shown in figure value of V(R) is

    Text Solution

    |

  15. In the circuit shown in figure current in the circuit is

    Text Solution

    |

  16. The power factor of the circuit shown in the figure is

    Text Solution

    |

  17. An inductor coil stores U energy when i current is passed through it a...

    Text Solution

    |

  18. The dimensions of magnetic flux are

    Text Solution

    |

  19. Two inductors L(1) and L(2) are connected in parallel and a time varyi...

    Text Solution

    |

  20. A resistance is connected to a n AC source. If a capacitor is induced...

    Text Solution

    |