A capacitor of 10 µF charged upto 250 volt is connected in parallel with another capacitor of 5 µF charged upto 100 volt. The common potential is
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(a) 500 V (b) 400 […]
A 10 micro farad capacitor is charged to 500 V and then its plates are joined together through a resistance of 10 ohm. The heat produced in the resistance is
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(a) 500 […]
64 drops of mercury, each charged to a potential of 10 V, are combined to form one bigger drop. The potential of this drop will be(Assume all drops are spherical)
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(a) 160 […]
Two charges placed in air repel each other by a force of 10⁻⁴ N. When oil is introduced between the charges, the force becomes 2.5 x 10⁻⁵ N. The dielectric constant of oil is
In a parallel plate capacitor of capacitance C, a metal sheet is inserted between the plates parallel to them, If the thickness of the sheet is half of the separation between the plates, the capacitance […]
A sample of HCl gas is placed in an electric field of 5 x 10⁴ N/C. The dipole moment of each HCl molecule is 6 x 10⁻³⁰ Cm. The maximum torque that can act on […]
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