Home
Class 12
PHYSICS
Take the potential of the point B in fi...

Take the potential of the point B in figure to be zero . (a) Find the potentials at the points C and D ,(b)If a capacitor is connected between C and D , what charge will appear on the capacitor ?

Text Solution

Verified by Experts

(a) Charge on the path `Delta ADB ` is equalto
` = C xx V`
`= 2 mu F xx 50 = 100 mu C`,
Potential at point D is
`q / C_1 = 100 mu C / 6 mu F`
`= 50 /3 V`
(fig) Similarly potential at point C is equal to
` = 50 / 3V`
(b) No any charge because the potential difference C and D point is zero .
Promotional Banner

Topper's Solved these Questions

  • CAPACITORS

    HC VERMA|Exercise OBJECTIVE 2|7 Videos
  • BOHR'S MODEL AND PHYSICS OF THE ATOM

    HC VERMA|Exercise Exercises|46 Videos
  • DISPERSION AND SPECTRA

    HC VERMA|Exercise Exercises|11 Videos

Similar Questions

Explore conceptually related problems

A 6-volt battery of negligible internal resistance is connected across a uniform wire AB of length 100cm. The positive terminal of another battery of emf 4V and internal resistance 1(Omega) is joined to the point A as shown in figure.Take the potential at B to be zero. (a) What are the potentials at the poits A and C ? (b) At which point D of the wire AB, the potential is equal to the potential at C?(c ) If the point C and D are connected by a wire, what will be the current through it ? (d) If the 4V battery is replaced by 7.5V battery,wht would be the answer of parts (a) and (b) ?

Both the cacpacitors shown in figure are made ofsquare of edge a The separations between the plates of the capacitors are d_1and d_2as shown in the figure A potential difference V is applied between the point a and b .An electron is projected between the plate s of the upper capacitor along the central line . With what minimum speed should the electron be projected so that it is does not collide with any plate ? consider only the electric forces.

Each of the capacitors shown n figure has a capacitance of 2 microFarad . Find the equivalent capacitance of the assembly between the points A and B . Suppose ,a battery of end of emf 60 volts is is connected between A and B .Find the potential difference appearing on the individual capacitors .

A uniform field of 2.0 NC^(-1) exists in space in x direction (a) Taking the potential at the origin to be zero, write an experssion for the potential at a general point (x,y,z). (b) At which points, the potential is 25V ? ( c) If the potential at the origin is taken to be 100V , what will be the expression for the potential at a general point? (d) What will be the potential at the origin if the potential at infinity is taken to be zero ? Is it parctical to choose the potential at infinity to be zero?

A parallel plate capacitor is charged by a battery after some time, the battery is disconnected and a dielectric slab with its thicnkess equal to the plate so reparation is insected between the plates. How will (i) the capacitance of the capacitor (ii) potential difference between the plates & (iii) the energy sotred in the capacitor the affected ? Q_(0) -charge V_(0) - potential difference, C_(0) - capacitance, E_(0) electric field. U_(0) - energy spred, before the dielectric slab is inserted. Q_(0)=C_(0) V_(0), (V_(0))/(d), U_(0)=(1)/(2)C_(0)V_(0)^(2)?

A capacitor having a capacitance of 100muF is charged to a potential difference of 24V . The charging battery is disconnected and the capacitor is connected to another battery of emf 12V with the positive plate of the capacitor joined with the positive terminal of the battery . (a ) Find the charges on the capacitor before and after the reconnection . (b ) Find the charge flown through the 12V battery . (c ) Is work done by the battery or is it done on the battery ? find its magnitude . (d ) Find the decrease in electrostatic field energy . (e ) Find the best developed during the flow of charge after reconnection.

A parallel - plate capacitor of plate area A and plate separation d is charged to a potential difference V and then the battery is disconnected . A slab of dielectric constant K is then inserted between the plate of the capacitor so as to fill the space between the plate .Find the work done on the system in the process of inserting the slab.

Consider the connections shown in (a) Find the capacitance between the points A and B. (b) find the charge on the three capacitors. (c ) Taking the potential at the point B to be zero, find the potential at the point D.

find the potential difference between th point A and B and between the point B and C of figure in steady state.

Find the potential difference V_a -V_b between the points a and b shown in each part of the figure.

HC VERMA-CAPACITORS-Exercise
  1. Each of the capacitors shown n figure has a capacitance of 2 microFara...

    Text Solution

    |

  2. It is required to construct a 10 mu F capacitor which can be connecte...

    Text Solution

    |

  3. Take the potential of the point B in figure to be zero . (a) Find the...

    Text Solution

    |

  4. Find the equivalent capacitance of the system shown in figure betwee...

    Text Solution

    |

  5. A capacitor is made of a flat plate of area A and B second plate havin...

    Text Solution

    |

  6. A cylindrical capacitor is constructed using two coaxial cylinders of ...

    Text Solution

    |

  7. A 100 mu F capacitor is charged to a potential difference of 24 V. It ...

    Text Solution

    |

  8. Each capacitor shown in figure has a capacitance of 5.0 mu F , The em...

    Text Solution

    |

  9. The particle P shown has a mass of 10mg and a charge of -0.01mu C. E...

    Text Solution

    |

  10. Both the cacpacitors shown in figure are made ofsquare of edge a The ...

    Text Solution

    |

  11. The plate of a capacitor are 2.00cm apart . An electron -proton pair i...

    Text Solution

    |

  12. Convince yourself that parts (a) ,(b) and (c ) of figure are identica...

    Text Solution

    |

  13. Find the potential difference Va -Vb between the points a and b shown...

    Text Solution

    |

  14. Find the equivalent capacitances of the combinations shown in figure ...

    Text Solution

    |

  15. Find the capacitance of the combination shown in figure between A and...

    Text Solution

    |

  16. Find the equivalent capacitance of the point A and B .

    Text Solution

    |

  17. An infinite ladder is constructed by connecting several sections of 2...

    Text Solution

    |

  18. A charge of +2.0xx 10 ^-8 C is placed on the positive plate and a cha...

    Text Solution

    |

  19. A charge of 20 microCoulomb is placed on the positive plate of on is...

    Text Solution

    |

  20. A charge of 1 muC is given to one plate of a parallel - plate capacito...

    Text Solution

    |