Home
Class 12
PHYSICS
A + 3.0 nC charge Q is initially at rest...

A + 3.0 nC charge Q is initially at rest at a distance of `r_1 = 10` cm from a +5.0 nC charge q fixed at the origin . The charge Q is moved away from q to a new position at `r_2 = 15 cm` . In this process work done by the field is

A

`1.29 xx 10^(-5) J`

B

`3.6xx10^5 J`

C

`-4.5 xx 10^(-7) J`

D

`4.5xx10^(-7) J`

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

Two charges q_(1) = 3.0 mu C and q_(2) = - 4.0 mu C initiallly are separated by a distance r_(0) = 2.0 cm . An external agent moves the charges until they are r_(f) = 5.0 cm apart. (i) How much work is done by the electric field in moving the charges from r_(0) to r_(f) ? Is the work positive or negative ? (ii) How much work is donw by the external aganet in moving the charges from r_(0) to r_(f) ? Is the work positive or negative ? (iii) What is the positive energy of the initial state where the charge are r_(0) =2.0 cm apart ? (iv) What is the potential energy of the final state where the charges are r_(f)= 5.0cm apart ? (v) What is the change in potential energy from the initial state to the final state ?

An electric dipole is fixed at the origin of coordinates. Its moment is directed in the positive x - direction. A positive charge is moved from the point (r,0) to the point (-r,0) by an external agent. In this process, the work done by the agent is

A point charge q_1 = -1.0 muC is held stationary at the origin. A second point charge q_2 = + 2.0 muC moves from the point (1.0 m, 0, 0) to (2.0 m, 0, 0) . How much work is done by the electric force on q_2 ?

A point charge q is placed at the origin . How does the electric field due to the charge very with distance r from the origin ?

Magnitude of work done during the charging of a condenser from q=0 to q=Q is

Two equal negative charges are fixed at points and on y-axis. A positive charge Q is released from rest at the point on the x-axis. The charge Q will:

A point charge q produces an electric field of magnitude 2NC^(-1) at a point distance 0.25 m from it. What is the value of charge ?

What work is required to bring a charge q= 3.00 mu C originally a distance of 1.50 m from a charge Q= 20.0 muC until it is 0.50 m away ?

2q and 3q are two charges separated by a distance 12cm on x-axis .A third charge q is placed at 5cm on y-axis as shown in figure .Find the change in potential energy of the system if 3q is moved from initial position to a point on X-axis in circular path

XII BOARDS PREVIOUS YEAR-QUESTION PAPER 2022 TERM 1 SET 1-SECTION-B
  1. A square sheet of side 'a' is lying parallel to XY plane at z = a The ...

    Text Solution

    |

  2. Three charges q, -q and q0, are placed as shown in figure. The magnitu...

    Text Solution

    |

  3. A + 3.0 nC charge Q is initially at rest at a distance of r1 = 10 cm f...

    Text Solution

    |

  4. A car battery is charged by a 12 V supply , and energy stored in it is...

    Text Solution

    |

  5. A straight conducting rod of length l and mass m is suspended in a ho...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  14. Which of the following statements is correct?

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  19. The core of a transformer is laminated to reduce

    Text Solution

    |

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

    Text Solution

    |