Home
Class 12
PHYSICS
A charge of 2 × 10^(–2) C moves at 30 re...

A charge of `2 × 10^(–2) C` moves at 30 revolution per second in a circle of diameter 0.80 m. The current linked with the circuit will be -

A

`0.1 A`

B

`0.2 A`

C

`0.4 A`

D

`0.6 A`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4 (LEVEL-II)|13 Videos
  • ELECTRONICS - SEMI CONDUCTOR

    MOTION|Exercise EXERCISE - 3|29 Videos

Similar Questions

Explore conceptually related problems

An electron makes ( 3 xx 10^5) revolutions per second in a circle of radius 0.5 angstrom. Find the magnetic field B at the centre of the circle.

A point charge 3.2 xx 10^(-19) C " makes " 7 xx 10^(15) revolutions per second in a circular path of radius 1 Å . Calculate the magnetic induction at the centre of the circular path.

A charge q coulomb moves in a circle at n revolution per second and the radius of the circle is r metre. Then magnetic feild at the centre of the circle is

A particle is moving in a circle of diameter 10 m . The distance covered by it on completing 2 revolutions is

In a hydrogen atom the electron moves in an orbit of radius 0.5 Ao making 10 revolutions per second, the magnetic moment associated with the orbital motion of the electron will be

In a neon discharge tube 2.9 xx 10^(18) Ne^(+) ions move to the right each second while 1.2 xx 10^(18) eletrons move to the left per second. Electron charge is 1.6 xx 10^(-9) C . The current in the discharge tube

A body of mass 2 kg is revolving in a horizontal circle of radius 2 m at the rate of 2 revolutions per second. Determine (i) moment of inertia of the body and (ii) the rotational kinetic energy of the body.

An electron carrying a charge of 1.6xx10^(-19)C revolves in a circle at 10^(16) revolutions per second. The equivalent current is

MOTION-ELECTROMAGNETISM-Exercise
  1. In the circuit shown here C(1) = 6muF, C2 = 3muF and battery B = 20V. ...

    Text Solution

    |

  2. A capacitor of capacity C(1) is charged to the potential of V(0). On d...

    Text Solution

    |

  3. A charge of 2 × 10^(–2) C moves at 30 revolution per second in a circl...

    Text Solution

    |

  4. The current in a copper wire is increased by increasing the potential ...

    Text Solution

    |

  5. Consider two conducting wires of same length and material, one wire is...

    Text Solution

    |

  6. The potential difference between points A and B is -

    Text Solution

    |

  7. If a copper wire is stretched to make its radius decrease by 0.1%, the...

    Text Solution

    |

  8. The number of dry cells, each of e.m.f. 1.5 volt and internal resistan...

    Text Solution

    |

  9. The sides of rectangular block are 2 cm, 3 cm ad 4 cm. The ratio of th...

    Text Solution

    |

  10. A long resistance wire is divided into 2n parts. Then n parts are conn...

    Text Solution

    |

  11. Two bulbs 100 W, 250 V and 200 W, 250 V are connected in parallel acro...

    Text Solution

    |

  12. Two tungston lamps with resistance R1 and R2 respectively at full inca...

    Text Solution

    |

  13. In the previous question which lamp will glow more brightly when they ...

    Text Solution

    |

  14. The current (I) and voltage (V) graphs for a given metallic wire at tw...

    Text Solution

    |

  15. A 3^(0)C rise in temperature is observed in a conductor by passing a c...

    Text Solution

    |

  16. A wire of resistance 0.5 omega m^(-1) is bent into a circle of radius ...

    Text Solution

    |

  17. In Wheat stone's bridge P = 9 ohm , Q = 11 ohms, R = 4 ohm and S = 6 ...

    Text Solution

    |

  18. The current -voltage - variation for a wire of copper of length (L) an...

    Text Solution

    |

  19. If fig. the difference of potential between (B) and (D) is -

    Text Solution

    |

  20. In fig the current through resistance (R) is

    Text Solution

    |