Home
Class 12
PHYSICS
A uniform magnetic field existsin region...

A uniform magnetic field existsin region given by `vec(B) = 3 hat(i) + 4 hat(j)+5hat(k)`. A rod of length `5 m` is placed along `y`-axis is moved along `x`- axis with constant speed `1 m//sec`. Then the magnitude of induced `e.m.f` in the rod is :

A

zero

B

25V

C

20 V

D

15 V

Text Solution

Verified by Experts

The correct Answer is:
B
We know that
E =`B_(Z) l_(Y)uX`
E = (5) (5) (1) = 25 V
Promotional Banner

Topper's Solved these Questions

  • NTA TPC JEE MAIN TEST 109

    NTA MOCK TESTS|Exercise PHYSICS |30 Videos

  • NTA TPC JEE MAIN TEST 111

    NTA MOCK TESTS|Exercise PHYSICS |30 Videos

Similar Questions

Explore conceptually related problems

The magnetic field in a region is given by vec(B)=B_(0)(1+(x)/(a))hat(k) . A square loop of edge length 'd' is placed with its edge along X-axis and Y-axis. The loop is moved with a constant velocity vec(V)=V_(0)hat(i) . The emf induced in the loop is

The magnetic field in a region is given by B=B_0(1+x/a)hat k .A square loop of edge-length d is placed with its edges along the x and y-axes. The loop is moved with a constant velocity v=v_0hat i .The emf induced in the loop is:

If vec(F) = (5hat(i)+2hat(j) - 4hat(k))N , the magnitude of force is

A vector is given by vec (A) = 3 hat(i) + 4 hat(j) + 5 hat(k) . Find the magnitude of vec(A) , unit vector along vec(A) and angles made by vec(A) with coordinate axes.

For vector vec(a)=3hat(i)+3hat(j)-2hat(k) , what are its component along X-axis, Y-axis & Z-axis.

The vector component of vector vec(A) = 3 hat(i) + 4 hat(j) + 5 hat(k) along vector vec(B) = hat(i) + hat(j) + hat(k) is

A glass rod of length l moves with velocity in a uniform magnetic field B. What is the e.m.f. induced in the rod ?

A uniform magnetic field vec(B) = 3 hat i + 4 hat j + hat k exists in region of space. A semicircular wire of radius of 1 m carrying current 1 A having its centre at (2, 2, 0) is placed in x-y plane as shown in Fig. The force on semicircular wire will be

NTA MOCK TESTS-NTA TPC JEE MAIN TEST 110-PHYSICS
  1. In a potential meter arrangement shown in fig. The balancing length fo...

    Text Solution

    |

  2. A hydrogen atom moving at a speed v absorbs a photon of wavelength 122...

    Text Solution

    |

  3. A uniform magnetic field existsin region given by vec(B) = 3 hat(i) + ...

    Text Solution

    |

  4. Consider the situation shown in the figure. The wire "AB" is sliding o...

    Text Solution

    |

  5. An earth- orbiting satellite has a solar energy collecting panel with ...

    Text Solution

    |

  6. In the circuit shown in the following figure, the value of Y is

    Text Solution

    |

  7. A hollow cylinder has a charge q C within it. If phi is the electric f...

    Text Solution

    |

  8. Two charged capacitors have their outer plates fixed and inner plates ...

    Text Solution

    |

  9. A spherically symmetric gravitational system of particles has a mass d...

    Text Solution

    |

  10. A vessel of volume 5000 cm^3 contains (1/20) moles of molecular nitrog...

    Text Solution

    |

  11. A marble block of mass 2 kg lying on ice when given a velocity of 6m//...

    Text Solution

    |

  12. A dip needle in a plane perpendicular to magnetic meridian will remain

    Text Solution

    |

  13. Two factories are sounding their sirens at 800 Hz. A man goes from one...

    Text Solution

    |

  14. In a Young's double slit experiment, 12 fringes are observed to be for...

    Text Solution

    |

  15. When a certain weight is suspended from a long uniform wire, its lengt...

    Text Solution

    |

  16. A point object O is placed at a distance of 0.3 m from a convex lens o...

    Text Solution

    |

  17. A disc of mass 4 kg and of radius 1 m rolls on a horizontal surface wi...

    Text Solution

    |

  18. A yo-yo is placed on a rough horizontal surface and a constant force F...

    Text Solution

    |

  19. The temperature of an ideal gas undergoing adiabatic expansion varies ...

    Text Solution

    |

  20. Which of the following cannot be polarized?

    Text Solution

    |