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Electrostatics Quiz-1

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10 Questions

Popular Questions In Electrostatics Quiz-1

  • Assume that an electric field E = 30x i exists in space. Then the potential difference VAV0,V _A - V _ 0 , where V0V_ 0 is the potential at the origin and VAV_A the potential at x = 2 m is

  • A parallel plate capacitor is made of two circular plates separated by a distance of 5 mm and with a dielectric of dielectric constant 2.2 between them. When the electric field in the dielectric is 3×104V/m,3\times10^4 V/m, the charge density of the positive plate will be close to:

  • Two point charges Q and –2Q are placed some distance apart. If the electric field at the location of Q is E, then the electric field at the location of –2Q will be

  • A conducting spherical bubble of radius a and thickness t (t << a) is charged to a potential V. Now it collapses to form a spherical droplet. The potential of the droplet is

  • A proton and an α\alpha–particle are situated at a distance ‘r’ apart. At very large distance apart, when released, the kinetic energy of proton will be

  • A capacitor of 20μF20\mu\,F and charged to 500 V is connected in parallel with another capacitor of 10μF10\mu\,F charged to 200 V. The common potential of the system is:

  • The force exerted by each plate on the other plate of a parallel plate capacitor of capacitance ‘C’ and separation between the plates ‘d’ with potential difference ‘V’ between the plates is given by

  • The potential of the electric field at any point (x, y, z) is given by: V=3x2+5,V = 3x^2+5, where x, y and z are in metres and V is in volts. The intensity of electric field at (–2, 1, 0)m is:

  • Taking earth to be a spherical conductor of diameter 12.8×10312.8\times10^3 km, its electrical capacitance is

  • Two bodies A and B carry charges of 3.00μC-3.00\,\mu C and 0.44μC-0.44\,\mu C respectively. How many electrons should be transferred, from which one to which, so that they acquire equal charges?