Home
Class 12
PHYSICS
The number of electric field lines cross...

The number of electric field lines crossing an area `DeltaS is n_1 when Delta vecS||vecE`, while the number of field lines crossing the same area is `n_2` when `DeltavecE` makes an angles of `30^@` with `vecE`. Then

A

`n_1 = n_2`

B

`n_1gtn_2`

C

`n_1`lt`n_2`

D

cannot say anything

Text Solution

Verified by Experts

The correct Answer is:
B
The number of field lines crossing an area is directly related
to electric flux passing through surface. In first case, the flux
crossing the surface is more than the flux crossing through
surface in second case, so `n_1gtn_2`.
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC FLUX AND GAUSS LAW

    CENGAGE PHYSICS|Exercise Multiple Correct|8 Videos

  • ELECTRIC FLUX AND GAUSS LAW

    CENGAGE PHYSICS|Exercise Comprehension|36 Videos

  • ELECTRIC FLUX AND GAUSS LAW

    CENGAGE PHYSICS|Exercise Subjective|12 Videos

  • ELECTRIC CURRENT AND CIRCUIT

    CENGAGE PHYSICS|Exercise Interger|8 Videos

  • ELECTRIC POTENTIAL

    CENGAGE PHYSICS|Exercise DPP 3.5|14 Videos

Similar Questions

Explore conceptually related problems

The number of electric field lines crossing an area DeltaS is n_(1) when Delta vec(S)||vec(E ) while number of field lines crossing same area is n_(2) when Delta vec(E ) makes an angle of 30^(@) with vec(E ) , then :

The angle between electric field intensity vec(E) and the area vector vec(ds) at which the T.N.E.I. is maximum is

Electric flux phi through an element area triangleS when area is placed in region of uniform field E is

When a current carrying coil is placed in a uniform magnetic field of induction B , then a torque tau acts on it. If I is the current, n is the number of turns and A is the face area of the coil and the normal to the coil makes an angle theta with B , Then

Given a uniform electric field vecE=4xx10^(3)hati N//C . Find the flux of this field through a square of side 5cm on a side whose plane is parallel to the y-z plane. What would be the flux through the same square, if the plane makes a 30^(@) angle of with the x-axis?

.............. linked with a surface area is defined as the number of magnetic field lines passing through that area perpendicularly.

In a region, where electric field intensity is 5 N/C, 50 electric lines of force are crossing per sq. metre. The number of electric lines of force crossing perr sq. metre where electric field intensity is 20 N/C, will be

What is the ratio of electric field intensity at a point on the equatorial line to the field at a point on axial line when the points are at the same distance from the centre of the dipole ?

CENGAGE PHYSICS-ELECTRIC FLUX AND GAUSS LAW-Single Correct
  1. The electric field vecE1 at one face of a parallelopiped is uniform ov...

    Text Solution

    |

  2. A dielectric in the form of a sphere is introduced into a homogeneous ...

    Text Solution

    |

  3. The electric field on two sides of a large charged plate is shown in f...

    Text Solution

    |

  4. A sphere of radius R carries charge such that its volume charge densit...

    Text Solution

    |

  5. An uncharged conducting large plate is placed as shown. Now an electri...

    Text Solution

    |

  6. An uncharge aluminium block has a cavity within it. The block is place...

    Text Solution

    |

  7. Figure shows a uniformly charged hemisphere of radius R. It has a volu...

    Text Solution

    |

  8. Consider an infinite line charge having uniform linear charge density ...

    Text Solution

    |

  9. One-fourth of a sphere of radius R is removed as shown in figure. An e...

    Text Solution

    |

  10. A nonconducting sphere of radius R is filled with uniform volume charg...

    Text Solution

    |

  11. A large charged metal sheet is placed in a uniform electric field, per...

    Text Solution

    |

  12. A positively charge sphere of radius r0 carries a volume charge densit...

    Text Solution

    |

  13. Four very large metal plates are given charges as shown in figure. The...

    Text Solution

    |

  14. A conic surface is placed in a uniform electric field E as shown in fi...

    Text Solution

    |

  15. Flux passing through the shaded surface of a sphere when a point charg...

    Text Solution

    |

  16. An infinitely long line charge having a uniform charge per unit length...

    Text Solution

    |

  17. Two infinite sheets having charge densities sigma1 and sigma2 are plac...

    Text Solution

    |

  18. Two nonconducting infinite planes sheets having charges Q and 2Q are p...

    Text Solution

    |

  19. Three large identical conducting parallel plates carrying charge +Q , ...

    Text Solution

    |

  20. The number of electric field lines crossing an area DeltaS is n1 when ...

    Text Solution

    |