Chapter 2 – Electrostatic Potential and Capacitance
Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 2 > Chapter 2 - Electrostatic Potential and Capacitance
A capacitor with capacitance 5 μF is charged to 5μC. If the plates are pulled apart to reduce the capacitance to 2μF, how much work is done ?
05
Dec
A capacitor with capacitance 5 μF is charged to 5μC. If the plates are pulled apart to reduce the capacitance to 2μF, how much work is done ? A capacitor with capacitance 5 μF is charged to 5μC. If the plates are pulled apart to reduce the capacitance to 2μF how much work is done [...]
A system of three charges are placed as shown in the figure : If D>>d, the potential energy of the system is given by
05
Dec
A system of three charges are placed as shown in the figure : If D>>d, the potential energy of the system is given by A system of three charges are placed as shown in the figure : If D>>d the potential energy of the system is given by December 5, 2020 Category: Arihant Physics by [...]
A parallel plate capacitor has 1μF capacitance. One of its two plates is given +2μC charge and the other plate, +4μC charge. The potential difference developed across the capacitor is :
05
Dec
A parallel plate capacitor has 1μF capacitance. One of its two plates is given +2μC charge and the other plate, +4μC charge. The potential difference developed across the capacitor is : +4μC charge. The potential difference developed across the capacitor is : A parallel plate capacitor has 1μF capacitance. One of its two plates is [...]
A positive point charge is released from rest at a distance r0 from a positive line charge with uniform density. The speed (v) of the point charge, as a function of instantaneous distance r from line charge, is proportional to :
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Dec
A positive point charge is released from rest at a distance r0 from a positive line charge with uniform density. The speed (v) of the point charge, as a function of instantaneous distance r from line charge, is proportional to : A positive point charge is released from rest at a distance r0 from a [...]
An electric dipole is formed by two equal and opposite charges q with separation d. The charges have same mass m. It is kept in a uniform electric field E. If it is slightly rotated from its equilibrium orientation, then its angular frequency ω is :
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Dec
An electric dipole is formed by two equal and opposite charges q with separation d. The charges have same mass m. It is kept in a uniform electric field E. If it is slightly rotated from its equilibrium orientation, then its angular frequency ω is : the angle that the pendulum makes with the vertical [...]
The electric field in a region is given by E = (Ax + B) i ^ , where E is in NC^−1 and x is in metres. The values of constants are A=20SI unit and B=10SI unit. If the potential at x=1 is V1 and that at x=−5 is V2 , then V1− V2 is :-
05
Dec
The electric field in a region is given by E = (Ax + B) i ^ , where E is in NC^−1 and x is in metres. The values of constants are A=20SI unit and B=10SI unit. If the potential at x=1 is V1 and that at x=−5 is V2 , then V1− V2 is [...]
Voltage rating of a parallel plate capacitor is 500 V. Its dielectric can withstand a maximum electric field of 10^6 V/m. The plate area is 10^−4 m^2 . What is the dielectric constant is the capacitance is 15 pF? (given ϵ0 = 8.86 × 10^−12 C^2 /Nm^2 ).
05
Dec
Voltage rating of a parallel plate capacitor is 500 V. Its dielectric can withstand a maximum electric field of 10^6 V/m. The plate area is 10^−4 m^2 . What is the dielectric constant is the capacitance is 15 pF? (given ϵ0 = 8.86 × 10^−12 C^2 /Nm^2 ). the angle that the pendulum makes with [...]
A solid conducting sphere having a charge Q is surrounded by an uncharged concentric conducting hollow spherical shell. Let the potential difference between the surface of the solid sphere and that of the outer surface of the hollow shell be V. If the shell is now given a charge of −4Q, the new potential difference between the same two surfaces is :
05
Dec
A solid conducting sphere having a charge Q is surrounded by an uncharged concentric conducting hollow spherical shell. Let the potential difference between the surface of the solid sphere and that of the outer surface of the hollow shell be V. If the shell is now given a charge of −4Q, the new potential difference [...]
The bob of a simple pendulum has mass 2g and a charge of 5.0μC. It is at rest in a uniform horizontal electric field of intensity 2000 V/m. At equilibrium, the angle that the pendulum makes with the vertical is : (take g=10 m/s^2 ).
05
Dec
The bob of a simple pendulum has mass 2g and a charge of 5.0μC. It is at rest in a uniform horizontal electric field of intensity 2000 V/m. At equilibrium, the angle that the pendulum makes with the vertical is : (take g=10 m/s^2 ). the angle that the pendulum makes with the vertical is [...]
A capacitor connected to cell of emf E0 is immersed in a dielectric liquid having dielectric constant K. The liquid with in the gap is at an excess pressure of?
05
Dec
A capacitor connected to cell of emf E0 is immersed in a dielectric liquid having dielectric constant K. The liquid with in the gap is at an excess pressure of? A capacitor connected to cell of emf E0 is immersed in a dielectric liquid having dielectric constant K. The liquid with in the gap is [...]