Electrostatic Potential and Capacitance questions
621 published questions with worked solutions.
- A parallel plate capacitor having capacitance 12 pF is charged by a battery to a potential difference of 10 V between its plates....
- A charge Q is distributed over three concentric spherical shells of radii a, b, c (a < b < c) such that their surface charge...
- A 60 pF capacitor is fully charged by a 20 V supply. It is then disconnected from the supply and is connected to another...
- An electric dipole of moment p =(- i -3 j +2 k ) 10^ -29 C.m is at the origin (0, 0, 0). The electric field due to this dipole at...
- Concentric metallic hollow spheres radii R and 4R hold charges Q_1 and Q_2 respectively. Given that surface charge densities of...
- Two identical capacitors have same capacitance C. One of them is charged to the potential V and other to the potential 2V. The...
- A parallel plate capacitor of capacitance 12.5 pF is charged by a battery connected between its plates to potential difference of...
- An electron rotates in a circle around a nucleus having positive charge Ze. Correct relation between total energy (E) of electron...
- The electric field between the two parallel plates of a capacitor of 1.5 μF capacitance drops to one third of its initial value...
- Three capacitors of capacitances 25 μF, 30 μF and 45 μF are connected in parallel to a supply of 100 V. Energy stored in the...
- Effective capacitance of parallel combination of two capacitors C_1 and C_2 is 10 . When these capacitors are individually...
- Consider two charged metallic spheres S_1 and S_2 of radii R_1 and R_2, respectively. The electric fields E_1 (on S_1) and E_2...
- A 10 capacitor is fully charged to a potential difference of 50 V. After removing the source voltage it is connected to an...
- A 5 capacitor is charged fully by a 220 V supply. It is then disconnected from the supply and is connected in series to another...
- Two isolated conducting spheres S_1 and S_2 of radius 2 3 R and 1 3 R have 12 and –3 charges, respectively, and are at a large...
- Two charged conducting spheres of radii a and b are connected to each other by a conducting wire. The ratio of charges of the two...
- A capacitor has air as dielectric medium and two conducting plates of area 12 cm² and they are 0.6 cm apart. When a slab of...
- A capacitor C is fully charged with voltage V_0. After disconnecting the voltage source, it is connected in parallel with another...
- Two capacitors of capacitances C and 2C are charged to potential differences V and 2V, respectively. These are then connected in...
- A parallel plate capacitor has plate of length ' ', width 'w' and separation of plates is 'd'. It is connected to a battery of...
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