Home
Class 12
PHYSICS
A Uniform electric field of 10NC ^(-1) e...

A Uniform electric field of `10NC ^(-1)` exists in the vertically downward direction. Find the increase in the electric potential as one goes up through a height of 50cm.

Text Solution

Verified by Experts

`E=10N//C,S=50cm=1/2m `
` or v=e.s=10xx1/2=5V`
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC FIELD AND POTENTIAL

    HC VERMA|Exercise Objective 2|8 Videos
  • ELECTRIC CURRENT THROUGH GASES

    HC VERMA|Exercise Exercises|23 Videos
  • ELECTROMAGNETIC INDUCTION

    HC VERMA|Exercise EXERCISE|9 Videos

Similar Questions

Explore conceptually related problems

A coil having 10 Am^2 magnetic moment is placed in a vertical plane & is free to rotate about its horizontal axis coincides with its diameter. A uniform magnetic field of 2T in the horizontal direction exists such that initially the axis of the coil is in the direction of the field. The coil rotates through an angle of 90^@ under the influence of magnetic field. The moment of Inertia of coil is 0.1 kg m^2 . What will be its angular speed?

Consider a uniform electric field in the hatz direction. The potential is a constant

A uniform magnetic field of 1.5 T exists in a cylindrical region of radius10.0 cm, its direction parallel to the axis along east to west. A wire carrying current of 7.0 A in the north to south direction passes through this region. What is the magnitude and direction of the force on the wire if, (a) the wire intersects the axis, (b) the wire is turned from N-S to northeast-northwest direction, (c) the wire in the N-S direction is lowered from the axis by a distance of 6.0 cm?

What are the forms, of energy into which the electrical energy of the atmosphere is dissipated during a lightning ? (Hint : The earth has an electric field of about 100 Vm^(-1) at its surface In the downward direction, corresponding to a surface charge density = - 10^(-9) cm^(-2) . Due to the slight conductivity of the atmosphere up to about 50 km (beyond which it is good conductor), about + 1800 C is pumped every second into the earth as a whole. The earth, however, does not get discharged since thunderstorms and lightning occurring continually all over the globe pump an equal amount of negative charge on the earth).

An electron falls throgh a distance of 1.5 cm in a uniform electric field of magnitude 2.0 xx10^(4) N c^(-1) the direction of the field is reversed keeping its magnitude unchanged and a proton falls through the same distance compute the time of falls in each case contrast the situation with that of free fall under gravity

A 100 turn closely wound circular coil of radius 10 cm carries a current of 3.2 A. (a) What is the field at the centre of the coil? (b) What is the magnetic moment of this coil? The coil is placed in a vertical plane and is free to rotate about a horizontal axis which coincides with its diameter. A uniform magnetic field of 2T in the horizontal direction exists such that initially the axis of the coil is in the direction of the field. The coil rotates through an angle of 90^@ under the influence of the magnetic field. (c) What are the magnitudes of the torques on the coil in the initial and final position? (d) What is the angular speed acquired by the coil when it has rotated by 90^@ ? The moment of inertia of the coil is 0.1 kg m^2 .

An electron falls through a distance of 2 cm ir a uniform electric field of magnitude 6.0 xx 10^4 NC^(-1) figure (a). The direction of the field is reversed keeping its magnitude unchanged and a proton falls through the same distance figure (b). Compute the time of fall ir each case. Contrast the situation with that oi 'free fall under gravity'. m_(e) = 9.1 xx 10^(-31)kg, m_(p) = 1.7 xx 10^(-27) kg and e = 1.6 xx 10^(-19) C

An electron falls through a distance of 1.5cm in a uniform electric field of magnitude 2 times 10^4 NC^-1 . The direction of the field is reversed keeping its magnitude unchanged and a proton falls through the same distance. Compute the time of fall in each case.

Uniform electric field of magnitude 100 V//m in space is directed along the line y=3+x . Find the potential difference between point A (3, 1) & B(1, 3)

HC VERMA-ELECTRIC FIELD AND POTENTIAL-Exercises
  1. A block of mass m having a charge q is placed on a smooth horizontal t...

    Text Solution

    |

  2. A block of mass m containing a net positive charge q is placed on a sm...

    Text Solution

    |

  3. A Uniform electric field of 10NC ^(-1) exists in the vertically downwa...

    Text Solution

    |

  4. 12 j of work has to be done against an existion electric field to take...

    Text Solution

    |

  5. Two equal charges, 2.0xx10^(-7) C each, are held fixed at a separation...

    Text Solution

    |

  6. An electric field of 20 N//C exists along the x-axis in space. Calcula...

    Text Solution

    |

  7. Consider the situation of the previous problem. A charge of 2.0xx 10 ^...

    Text Solution

    |

  8. An electric field vecE = vec(i20 + vecj30 ) NC^(-1) exists in the spac...

    Text Solution

    |

  9. An electric field vecE = vec i Ax exists in the space, where A= 10 V ...

    Text Solution

    |

  10. The electric potential existing in space is V(x,y,z)= A (xy+ yz+zx).(a...

    Text Solution

    |

  11. Two charged particles, having equal charges of 2.0xx 10^(-5) C each, a...

    Text Solution

    |

  12. Some equipotential surfaces are shown in figure(29.E3) What can you sa...

    Text Solution

    |

  13. Consider a circular ring of radius r, uniformly charged with linear ch...

    Text Solution

    |

  14. An electric field of magnitude 1000 NC ^(-1) is produced between two p...

    Text Solution

    |

  15. A uniform field of 2.0 NC^(-1) exists in space in x direction (a) Taki...

    Text Solution

    |

  16. How much work has to be done in assembling three charged particles at ...

    Text Solution

    |

  17. The kinetc energy of a chargd particle decreased by 10 J as it moves f...

    Text Solution

    |

  18. Two identical particles, each having a charge of 2.0xx10^(-4) C and ma...

    Text Solution

    |

  19. Two particles have equal masses of 5.0 g each and opposite charges of ...

    Text Solution

    |

  20. A sample of HCl gas is placed in an electric field of 2.5xx 10^4 NC^(-...

    Text Solution

    |