Chapter 2 – Electrostatic Potential and Capacitance
Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 2 > Chapter 2 - Electrostatic Potential and Capacitance
Four charges equal to −Q are placed at the four corners of a square and a charge q is at its centre, If the system is in equilibrium the value of q is
05
Dec
Four charges equal to −Q are placed at the four corners of a square and a charge q is at its centre, If the system is in equilibrium the value of q is Four charges equal to −Q are placed at the four corners of a square and a charge q is at its centre [...]
A charged particle q is shot towards another charged particle Q which is fixed, with a speed v. It approaches Q upto a closest distance r and then returns. If q was given a speed 2v, the closest distance of approach would be:
05
Dec
A charged particle q is shot towards another charged particle Q which is fixed, with a speed v. It approaches Q upto a closest distance r and then returns. If q was given a speed 2v, the closest distance of approach would be: A charged particle q is shot towards another charged particle Q which [...]
Two spherical conductors B and C having equal radii and carrying equal charges on them repel each other with a force F when kept apart at some distance. A third spherical conductor having same radius as that B but uncharged is brought in contact with B, then brought in contact with C and finally removed away from both. The new force of repulsion between B and C is
05
Dec
Two spherical conductors B and C having equal radii and carrying equal charges on them repel each other with a force F when kept apart at some distance. A third spherical conductor having same radius as that B but uncharged is brought in contact with B, then brought in contact with C and finally removed [...]
A fully charged capacitor has a capacitance C. It is discharged through a small coil of resistance wire embedded in a thermally insulated block of specific heat capacity s and mass m. If the temperature of the block is raised by ΔT, the potential difference V across the capacitance is:
05
Dec
A fully charged capacitor has a capacitance C. It is discharged through a small coil of resistance wire embedded in a thermally insulated block of specific heat capacity s and mass m. If the temperature of the block is raised by ΔT, the potential difference V across the capacitance is: ΔV measured between B and [...]
A charged ball `B` hangs from a silk thread `S`, which makes an angle `theta` with a large charged conducting sheet `P`, as shown in the figure. The surface charge density `sigma` of the sheet is proportional to
05
Dec
A charged ball `B` hangs from a silk thread `S`, which makes an angle `theta` with a large charged conducting sheet `P`, as shown in the figure. The surface charge density `sigma` of the sheet is proportional to A charged ball `B` hangs from a silk thread `S` as shown in the figure. The surface [...]
An electric dipole is placed at an angle of 30^∘ to a non-uniform electric field. The dipole will experience
05
Dec
An electric dipole is placed at an angle of 30^∘ to a non-uniform electric field. The dipole will experience An electric dipole is placed at an angle of 30^∘ to a non-uniform electric field. The dipole will experience December 5, 2020 Category: Arihant Physics by D.C Pandey , Chapter 2 - Electrostatic Potential and Capacitance [...]
An electric charge 10^−3μC is placed at the origin (0, 0) of X-Y co-ordinate system. Two points A and B are situated at (2–√,2–√) and (2, 0) respectively. The potential difference between the points A and B will be
05
Dec
An electric charge 10^−3μC is placed at the origin (0, 0) of X-Y co-ordinate system. Two points A and B are situated at (2–√,2–√) and (2, 0) respectively. The potential difference between the points A and B will be 0) of X-Y co-ordinate system. Two points A and B are situated at (2–√ 0) respectively. [...]
Charges are placed on the vertices of a square as shown. Let E→ be the electric field and V the potential at the centre. If the charges on A and B are interchanged with those on D and C respectively, then
05
Dec
Charges are placed on the vertices of a square as shown. Let E→ be the electric field and V the potential at the centre. If the charges on A and B are interchanged with those on D and C respectively, then Charges are placed on the vertices of a square as shown. Let E→ be [...]
The potential at a point x ( measured in μ m) due to some charges situated on the x-axis is given by V(x)=20/(x^2−4)volt
05
Dec
The potential at a point x ( measured in μ m) due to some charges situated on the x-axis is given by V(x)=20/(x^2−4)volt The potential at a point x ( measured in μ m) due to some charges situated on the x-axis is given by V(x)=20/(x^2−4)volt December 5, 2020 Category: Arihant Physics by D.C Pandey [...]
A thin spherical shell of radius R has charge Q spread uniformly over its surface. Which of the following graphs most closely represents the electric field E(r) produced by the shell in the range 0≤r
05
Dec
A thin spherical shell of radius R has charge Q spread uniformly over its surface. Which of the following graphs most closely represents the electric field E(r) produced by the shell in the range 0≤r A thin spherical shell of radius R has charge Q spread uniformly over its surface. Which of the following graphs [...]