Home
Class 12
PHYSICS
A conducting sphere of radius R is given...

A conducting sphere of radius R is given a charge Q.The electric potential and the electric field at the centre of the sphere respectively are

A

zero and `Q/(4 pi epsilon_0R^2)`

B

`Q/(4 pi epsilon_0R)` and zero

C

`Q/(4 pi epsilon_0R)` and `Q/(4 pi epsilon_0R^2)`

D

Both are zero

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • ATOMS AND NUCLEI

    SARAS PUBLICATION|Exercise EXAMPLE|36 Videos
  • DUAL NATURE OF MATTER AND RADIATION

    SARAS PUBLICATION|Exercise EXAMPLE|27 Videos

Similar Questions

Explore conceptually related problems

A conducting sphere of radius R is give a charge Q. The electric potential and the electric field at the centre of the sphere are, respectively

The electric potential at the centre of a charged conductor is

A conducting sphere of radius 20 cm gives a charge of 16 mu C . The electric field at its centre will be :

A thin conducting ring of radius R is given a change +Q . The electric field at the centre O of the ring due to the charge on the part AKB of the ring is E. The electric field at the centre due to the charge on the part ACDB of the ring is:

A hollow insulated conducting sphere is given a positive charge of 10 mu C . What will be the electric field at the centre of the sphere is its radius is 2 meters ?

An siolated metal sphere of radius 'r' is given a charge 'q' . The potential energy of the sphere is

A conducting sphere of radius 10 cm has an unknown charge if the electric field 20 cm from the centre of the sphere is 1.5 xx10^(3) N/C and points radialy inward what is the net charge on the sphere

A conducting sphere of radius 10 cm has an unknown charge. If the electric field 20cm from the centre of the sphere is 1.5 xx 10^(3)N//C and points radially inward, what is the net charge on the sphere?

An electric dipole is placed at the centre of a sphere. Mark the correct options:

A hollow metal sphere of radius 10 cm is charged such that the potential on its surface is 80 V. the potential at the centre of the sphere is

SARAS PUBLICATION-CURRENT ELECTRICITY-EXAMPLE
  1. The resistance of the four arms P,Q,R and S in a Wheatstone's bridge a...

    Text Solution

    |

  2. In the adjacent figure. AC = 6 cm, AB = 5 cm and angleBAC = 30^(@). Fi...

    Text Solution

    |

  3. Two rods are joined end to end as shown. Both have a cross-sectional a...

    Text Solution

    |

  4. A conducting sphere of radius R is given a charge Q.The electric poten...

    Text Solution

    |

  5. The resistances in the two arms of the metre bridge are 5Omega and R O...

    Text Solution

    |

  6. A potentiometer circuit has been set up for finding the internal resis...

    Text Solution

    |

  7. A potentiometer wire of length L and a resistance r are connected in s...

    Text Solution

    |

  8. Across a metallic conductor of non- uniform cross section a constant p...

    Text Solution

    |

  9. A potentiometre wire has length 4m resistance 8Omega. The resistance t...

    Text Solution

    |

  10. A,B and C are voltmetres of resistance R, 1.5R and 3R as shown in the ...

    Text Solution

    |

  11. An inductor 20 mH , a capacitor 50mu F and a resistor 40 are connected...

    Text Solution

    |

  12. A potentiometre wire is 100 cm long and a constant potential differen...

    Text Solution

    |

  13. A capacitor of 2mu F is charged as shown in the diagram. When the swit...

    Text Solution

    |

  14. If the velocity of a particle is nu=At+Bt^2, where A and B are constan...

    Text Solution

    |

  15. The charge flowing through a resistance R varies with time t as Q=at-b...

    Text Solution

    |

  16. A filament bulb (500W, 100V)is to be used in a 230v main supply. When ...

    Text Solution

    |

  17. The given circuit has two ideal diodes connected as shown in the figur...

    Text Solution

    |

  18. The temperature inside a refrigator is t2^@C and the room temperature ...

    Text Solution

    |

  19. The resistance of a wire is 'R' ohm. If it is melted and stretched to ...

    Text Solution

    |

  20. A potentiometer is an accurate and versatile device to make electrical...

    Text Solution

    |