Home
Class 12
PHYSICS
A rectangular coil of wire of area 400cm...

A rectangular coil of wire of area `400cm^(2)` contain `500` turns. It is places in a magnetic field of induction `4xx10^(-3)T` and it makes an angle `60^(@)` with the field. A current of `0.2A` is passed through is. The torque on the coil is

A

`8sqrt(3)xx10^(-3)N m`

B

`8xx10^(-3)Nm`

C

`8sqrt(3)xx10^(-4)Nm`

D

`8xx10^(-4)Nm`

Text Solution

Verified by Experts

The correct Answer is:
2

`tau =BAIn cos theta`
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise Level -II (H.W)|37 Videos
  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise ILLUSTRATION|58 Videos
  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise LEVEL-VI (SINGLE ANSWER QUESTION)|81 Videos
  • MAGNETISM AND MATTER

    NARAYNA|Exercise EXERCISE - 4 (SINGLE ANSWER TYPE QUESTION)|17 Videos
  • NUCLEAR PHYSICS

    NARAYNA|Exercise LEVEL-II-(H.W)|9 Videos

Similar Questions

Explore conceptually related problems

A coil of area 100cm^(2) having 500 turns carries a current of 1mA . It is suspended in a uniform magnetic field of induction 10^(-3)wb//m^(2) . Its plane makes an angle fo 60^(@) with the lines of induction. The torque acting on the coil is

A coil of area 5cm^(2) and having 20 turns is placed in a uniform magnetic field of 10^(3) gauss. The normal to the plane of the coil makes an angle of 60^(@) with the magnetic field. The flux in Maxwell through the coil is:

A rectangular coil of turns, each of area 20 cm^(2) is suspended freely in a uniform magnetic field of induction 6 xx 10^(-2)Wb//m^(2) ,with its plane inclined at 60◦ with the field. What is the magnitude of the torque acting on the coil, if a current of 100mA is passed through it?

A rectangular coil of wire of 500 turns of area 10xx5cm^(2) carries a current of 2A in a magnetic field of induction 2xx10^(-3)T . If the plane of the coild is parallel to the field. The torque on the coil is ( i n) Nm .

A coil of radius 1cm and 100 turns is placed in a magnetic field of 10^(6) gauss such that its plane makes an angle 30^(@) with the field . The magnetic flux through the coil in S.I unit is

A rectangular coil of turns 500 and area 2cmxx1cm carries 100mA current. It is suspended in a uniform magnetic field of 10^-3T , so that its plane makes an angle 60^@ with it. The torque on the coil in N-m is

A circular coil of diameter 21 cm is placed in a magnetic field of induction 10^(-4) T. the magnitude of flux linked with coil when the plane of coil makes an angle 30^(@) with the field is

A coil of area 500 cm^(2) having 1000 turns is put perpendicular to a magnetic field of intensity 4xx10^(-5) T. if it is rotated by 180^(@) in 0.1 s, the induced emf produced is

A circular coil of diameter 10 cm is placed in a magnetic field of induction 2 xx 10^(-4)T . The magnitude of flux linked with coil when the plane of coil makes an angle 45^@ with the field is

A rectangular coil 20 cm xx 10 cm having 500 turns rotates in a magnetic field of 5 xx 10^(-3) T with a frequency of 1200 rev min^(-1) about an axis perpendicular to the field.

NARAYNA-MOVING CHARGES AND MAGNETISM-Level =I (H.W)
  1. In a cyclotron , if the frequency of proton is 5MHz, the magnetic fiel...

    Text Solution

    |

  2. A cyclotron's oscillator frequency is 10 MHz . The operating magnetic ...

    Text Solution

    |

  3. A straight wire of length 0.5 metre and carrying a current of 1.2 ampe...

    Text Solution

    |

  4. Two parallel conductor carrying 5A each , repel with a force of 0.25Nm...

    Text Solution

    |

  5. Two straight parallel wires carry currents of 200 mA and 1A in opposit...

    Text Solution

    |

  6. Two long parallel copper wires carry currents of 5 A each in opposite ...

    Text Solution

    |

  7. A rectangular coil of wire of area 400cm^(2) contain 500 turns. It is ...

    Text Solution

    |

  8. A rectangular coil of wire carrying a current is suspended in a unifor...

    Text Solution

    |

  9. A vertical rectangular coil of sides 5 cm xx 2 cm has 10 turns and car...

    Text Solution

    |

  10. The coil in a MCG has an area of 4cm^(2) and 500 turns. The intensity ...

    Text Solution

    |

  11. The area of the coil in a moving coil galvanometer is 15cm^(2) and has...

    Text Solution

    |

  12. The sensitivity of a galvanometer of resistance 990Omega is increased ...

    Text Solution

    |

  13. A galvanometer of resistance 50Omega gives full scale deflection when ...

    Text Solution

    |

  14. A galvanometer of resistance 20Omega is shunted by a 2 Omega resistor....

    Text Solution

    |

  15. A galvanometer has a resistance 50 Omega and it shunted by a 0.5Omega ...

    Text Solution

    |

  16. A galvanometer having a coil resistance of 100 omega gives a full scal...

    Text Solution

    |

  17. A galvanometer has a resistance of 49Omega.If 2% of the main current i...

    Text Solution

    |

  18. In an ammeter 5% of the total current is passing through the galvanome...

    Text Solution

    |

  19. A galvanometer of internal resistance 100 Omega has a full scale defle...

    Text Solution

    |

  20. When a high resistance 'R' is connected in series with a volmeter of r...

    Text Solution

    |