Electrostatic Potential and Capacitance questions
621 published questions with worked solutions.
- Two capacitors of 100 and 50 are connected in parallel. If the potential difference across 100 is 20 V and across 50 is 40 V,...
- Two point charges + 10 and 4 are placed 10 cm apart in air. The work required to be done to bring them 2 cm closer is ( 1 4 _0 =...
- A regular hexagon of side 6 cm has a charge of 2 at each of its vertices, what is the potential at the centre of the hexagon? [ 1...
- Assuming the drops to be spherical, 27 identical drops of mercury are charged simultaneously to the same potential of 20 volt. If...
- A capacitor of unknown capacity is connected across a battery of V volt. The charge stored in it Q coulomb. When potential across...
- The function of dielectric in a capacitor is
- An electric dipole of length 2 cm is placed with its axis making an angle of to a uniform electric field of 10^ +5 N C . If it...
- A charge of total amount Q is distributed over two concentric hollow spheres of radii r and R(R > r ) such that the surface...
- This question has Statement 1 and Statement 2 . Of the four choices given after the Statements, choose the one that best...
- This question has statement 1 and statement 2 . Of the four choices given after the statements, choose the one that best...
- Two capacitors C_1 and C_2 are charged to 120 V and 200 V respectively. It is found that by connecting them together the...
- A point charge of magnitude +1μC is fixed at (0, 0, 0). An isolated uncharged spherical conductor, is fixed with its center at...
- Two small equal point charges of magnitude q are suspended from a common point on the ceiling by insulating mass less strings of...
- To establish an instantaneous current of 2 A through a 1μF capacitor ; the potential difference across the capacitor plates...
- Consider a finite insulated, uncharged conductor placed near a finite positively charged conductor. The uncharged body must have...
- This question has Statement-1 and Statement-2. Of the four choices given after the Statements, choose the one that best describes...
- A parallel plate capacitor having a separation between the plates d, plate area A and material with dielectric constant K has...
- Assume that an electric field E = 30x^2 i exists in space. Then the potential difference V_A - V_O, where V_O is the potential at...
- A parallel plate capacitor is made of two circular plates separated by a distance of 5 mm and with a dielectric of dielectric...
- Three capacitances, each of 3 μF, are provided. These cannot be combined to provide the resultant capacitance of :
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