Home
Class 12
PHYSICS
A coil of area 100 cm^(2) is kept and a...

A coil of area `100 cm^(2)` is kept and angle of `30^(@)` with a magnetic field of `10^(-1)` T. The magnetic field is reduced to zero in `10^(-4)s` . The induced emf in the coil is - .

A

`5 sqrt(3)V `

B

`50 sqrt(3)` V

C

`5.0 V`

D

`50.0` V

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2022 TERM 1 SET 1

    XII BOARDS PREVIOUS YEAR|Exercise SECTION-C|6 Videos
  • QUESTION PAPER 2022 TERM 1 SET 1

    XII BOARDS PREVIOUS YEAR|Exercise SECTION-C|6 Videos
  • QUESTION PAPER 2022 SET - 5

    XII BOARDS PREVIOUS YEAR|Exercise SECTION-C (CASE STUDY)|5 Videos
  • QUESTION PAPER 2022 TERM 1 SET 2

    XII BOARDS PREVIOUS YEAR|Exercise SECTION C|6 Videos

Similar Questions

Explore conceptually related problems

A coil of area 10 cm^2 has 200 turns. Magnetic field of 0.1 Wb//m^2 is perpendicular to the plane of the coil. The field is reduced to zero in 0.1 s, the induced emf in the coil is

A coil of wire enclosing an area 100 cm^2 is placed with its plane making an angle 60^@ with the magnetic field of strength 10^(-1) T. What is the flux through the coil? If magnetic field is reduced to zero in 10^(-3) s, then find the induced emf?

A coil of area 100 cm^(2) has 500 turns. Magnetic field of 0.1 "weber"//"metre"^(2) is perpendicular to the coil. The field is reduced to zero in 0.1 second. The induced e.m.f. in the coil is

The radius of a circular coil having 100 turns is 5 cm .its plane is normal to the magnetic field. The magnetic field changes from 2T to 10 T in 3.14 sec. The induced emf in coil will be

A coil of area 0.4m^(2) has 100 turns. A magnetic field of 0.04 Wb m^(-2) is acting normal to the coil surface. If this magnetic field is reduced to zero in 0.01 s, then the induced emf in the coil is

A square loop of side 20 cm and resistance 0.30 Omega is placed in a magnetic field of 0.4 T. The magnetic field is at an angle of 45^(@) to the plane of loop. If the magnetic field is reduced to zero in 0.5 s, then find the induced emf and induced current in the loop in this time interval.

A rectangular coil of 200 turns and area 100 cm^(2) is kept perpendicular to a uniform magnetic field of induction 0.25 tesla. If the field is reversed in direction in 0.01 second, the average induced emf in the coil is

A circular coil of wire consists of exactly 100 turns with a total resistance 0.20 Omega . The area of the coil is 100 cm^(2) . The coil is kept in a uniform magnetic field B as shown in Fig. 3.212. The magnetic field is increased at a constant rate of 2 Ts^(-1) . Find the induced current in the coil in A .

An a.c generator consists of a coil of 1000 turns each of area 100 cm^(2) and rotating at an angular speed of 100 rpm in a uniform magnetic field fo 3.6 xx 10^(2) T. Find the peak and r.m.s value of e.m.f induced in the coil.

21quad [" A coil of wire enclosing an area "100cm^(2)" is placed with its plane making an "],[" angle "60^(@)" with the magnetic field of strength "10^(-1)T" .What is the flux through "],[" the coil? If magnetic field is reduced to zero in "10^(-3)s" ,then find the induced "],[" emf? "]

XII BOARDS PREVIOUS YEAR-QUESTION PAPER 2022 TERM 1 SET 1-SECTION-B
  1. A straight conducting rod of length l and mass m is suspended in a ho...

    Text Solution

    |

  2. A constant current I is maintained in a solenoid. Which of lthe follo...

    Text Solution

    |

  3. As the frequency of an ac circuit increases, the current first increas...

    Text Solution

    |

  4. If n, e, tau, m, are representing electron density charge, relaxation ...

    Text Solution

    |

  5. A proton and an alpha particle move in circular orbits in a uniform ma...

    Text Solution

    |

  6. A coil of area 100 cm^(2) is kept and angle of 30^(@) with a magnetic...

    Text Solution

    |

  7. A 15 Omega resistor , an 80 mH inductor and a capacitor of capacitanc...

    Text Solution

    |

  8. Four objects W, X, Y and Z each with charge +q are held fixed at four ...

    Text Solution

    |

  9. Two sources of equal emf are connected to an external resistance R. Th...

    Text Solution

    |

  10. Which of the following statements is correct?

    Text Solution

    |

  11. The equivalent resistance between A and B of the network shown in figu...

    Text Solution

    |

  12. A bar magnet has magnetic dipole moment vecM. Its initial position is ...

    Text Solution

    |

  13. Two charges 14 muC and -4 muC are placed at (-12 cm, 0, 0) and (12 cm,...

    Text Solution

    |

  14. A 300 Omega resistor and a capacitor of (25/pi)muF are connected in se...

    Text Solution

    |

  15. The core of a transformer is laminated to reduce

    Text Solution

    |

  16. Assertion (A) : A negative charge in an electric field moves along the...

    Text Solution

    |

  17. Assertion : We cannot make a magnet with only one pole. Reason : Ma...

    Text Solution

    |

  18. Assertion: When radius of circular loop carrying current is doubled, i...

    Text Solution

    |

  19. Assertion : Higher the range, greater is the resistance of ammeter. ...

    Text Solution

    |

  20. Assertion (A) : A step - up transformer cannot be used as a step- down...

    Text Solution

    |