Electrostatic Potential and Capacitance questions
621 published questions with worked solutions.
- A parallel plate capacitor with air between the plates has a capacitance of 9pF. The separation between its plates is ' d '. The...
- Two points P and Q are maintained at the potentials of 10 V and −4 V respectively. The work done in moving 100 electrons from P...
- Let C be the capacitance of a capacitor discharging through a resistor R. Suppose t_1 is the time taken for the energy stored in...
- The electrostatic potential inside a charged spherical ball is given by = ^2 + b where r is the distance from the centre; a, b...
- A resistor 'R' and 2μF capacitor in series is connected through a switch to 200 V direct supply. Across the capacitor is a neon...
- The unit of potential gradient is
- The potential gradient along the length of a uniform wire is 5 V/m. There are two points on the same wire at a distance of 20 cm...
- Potential gradient is defined as fall of potential per unit :
- The potential gradient along the length of uniform wire is 15 V/m. what is potential difference between the points which are 20...
- The potential gradient along the length of uniform wire is 10 V ,m^ -1 . The length of the wire is 1 m. What is the potential...
- A particle of mass m and charge q is placed at rest in a uniform electric field E and then released, the kinetic energy attained...
- An electron at rest is accelerated by a potential 'V_1', in uniform field experiences a force 'F_1'. When potential is changed to...
- Two parallel plates separated by 'd' mm are kept at potential difference of 'V' volt. A particle of mass 'm' and charge 'q'...
- Two parallel plates separated by 'd' mm are kept at potential difference of 'V' volt. A particle of mass 'm' and charge 'q'...
- In going from the surface of a charged conducting sphere towards the centre of the sphere the electric field
- The work done in bringing a unit positive charge from infinity to the given point against the direction of electric intensity is
- An equipotential surface is that surface on which each and every point has
- Two plates are 1 cm apart and the potential difference between them is 10 V. The electric field between the plates is
- Electric intensity is directed along the direction at which electric potential
- If V be the change in potential between two neighbouring point r apart, then the electric intensity E is given by
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