Home
Class 12
PHYSICS
A long solenoid of radius R carries a ti...

A long solenoid of radius R carries a time dependent current `I = I_(0) t(1 – t)`. A ring of radius 2R is placed coaxially near its centre. During the time interval`0 le t le 1`, the induced current `I_(R)` and the induced emf VR in the ring vary as:

A

Direction of `I_R` remains unchanged and `V_R` is maximum at t = 0.5

B

At t = 0.25 direction of `I_R` reverses and `V_R` is maximum

C

Direction of `I_R` remains unchanged and `V_R` is maximum at t = 0.25

D

At t = 0.5 direction of `I_R` reverses and `V_R` is zero

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 47

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NTA NEET SET 49

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

long solenoid of radius R carries a time –dependent current I(t) = I_(0) (12t - t^(3)) . A ring of radius 2R is placed coaxially near its middle. During the time interval 0 le t le 2 sqrt(3) , the induced current (I_(R)) and the induced EMF (V_(R)) in the ring change as :

A long solenoid of radius R carries a time (t)-dependent current I(t)= I_(0)t^(2) (1-t) . A conducting ring of radius 3R is placed co-axially near its middle. During the time interva 0 le t le 1 , the induced current (I_(R )) in the ring varies as: [Take resistance of ring to be R_(0) ]

A long solenoid of radius R carries a time (t) – dependent current I=I_(0)(t-2t^(2)) A circular ring of radius = R is placed near the centre of the solenoid and plane of ring makes an angle 30^(@) with the axis of solenoid. The time at which magnetic flux through the ring is maximum is :

The current in a long solenoid of radius R and having n turns per unit length is given by i= i_0 sin omega t . A coil having N turns is wound around it near the centre. Find (a) the induced emf in the coil and (b) the mutual inductance between the solenoid and the coil.

A solenoid of radius R and length L has a current I = I​_0 cosωt. The value of induced electric field at a distance of r outside the solenoid, is

Consider a long infinite wire carrying a time varying current i=kt(kgt0) . A circular loop of radius a and resistance R is placed with its centre at a distance d from the wire (altltd) . Find out the induced current in the loop?

A conducting loop of radius R is present in a uniform magnetic field B perpendicular to the plane of ring. If radius R varies as a function of time t as R = R_(0)+t^(2) . The emf induced in the loop is

A conducting loop of radius R is present in a uniform magnetic field B perpendicular to the plane of the ring. If radius R varies as a function of time t, as R =R_(0) +t . The emf induced in the loop is

NTA MOCK TESTS-NTA NEET SET 48-PHYSICS
  1. What will be the equivalent resistance of circular shown in figure bet...

    Text Solution

    |

  2. A current of 2A is increasing at a rate of 4A//s through a coil of ind...

    Text Solution

    |

  3. A long solenoid of radius R carries a time dependent current I = I(0) ...

    Text Solution

    |

  4. An oil drop carrying a charge q has a mass m kg. it is falling freely ...

    Text Solution

    |

  5. Two capacitors, each of capacitance C, are at potentials V1" and "V2, ...

    Text Solution

    |

  6. If the radius of the earth were to shrink by 1% its mass remaining the...

    Text Solution

    |

  7. If a person can jump on the earth surface upto a height 2 m . His jump...

    Text Solution

    |

  8. Temperature difference of 120^(@)C is maintained between two ends of a...

    Text Solution

    |

  9. The temperature of equal masses of three different liquids A,B and C a...

    Text Solution

    |

  10. A monoatomic ideal gas, initially at temperature T1, is enclosed in a ...

    Text Solution

    |

  11. In a given process on an ideal gas, dW=0 and dQlt0. Then for the gas

    Text Solution

    |

  12. A solenoid of 1.5 metre length and 4.0 cm diameter possesses 10 turn p...

    Text Solution

    |

  13. A charged particle of mass m and charge q is projected into a uniform ...

    Text Solution

    |

  14. A projectile is thrown with a velocity of 18 m/s at an angle of 60^@ ...

    Text Solution

    |

  15. A bomber plane moves horizontally with a speed of 600 m//s and a bomb ...

    Text Solution

    |

  16. The linear momentum of a particle varies with time t as p= a +bt + ct^...

    Text Solution

    |

  17. Consider a car moving on a straight road with a speed of 100m//s. The ...

    Text Solution

    |

  18. Radio carbon dating is done by estimating in the specimen:

    Text Solution

    |

  19. In which of the following decays the element does not change?

    Text Solution

    |

  20. The x-t graph of a particle undergoing simple harmonic motion is shown...

    Text Solution

    |