Volume 2
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
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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
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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
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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 [...]
For current entering at A, the electric field at a distance r’ from A is:
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Dec
For current entering at A, the electric field at a distance r’ from A is: For current entering at A the electric field at a distance r' from A is: December 5, 2020 Category: Arihant Physics by D.C Pandey , Chapter 2 - Electrostatic Potential and Capacitance , Volume 2 ,
ΔV measured between B and C is
05
Dec
ΔV measured between B and C is ΔV measured between B and C is December 5, 2020 Category: Arihant Physics by D.C Pandey , Chapter 2 - Electrostatic Potential and Capacitance , Volume 2 ,
A parallel plate capacitor with air between the plates has capacitance of 9pF. The separation between its plates is ‘d’. The space between the plates is now filled with two dielectrics. One of the dielectrics has dielectric constant k1=3 and thickness d3 while the other one has dielectric constant k2=6 and thickness 2d/3. Capacitance of the capacitor is now
05
Dec
A parallel plate capacitor with air between the plates has capacitance of 9pF. The separation between its plates is ‘d’. The space between the plates is now filled with two dielectrics. One of the dielectrics has dielectric constant k1=3 and thickness d3 while the other one has dielectric constant k2=6 and thickness 2d/3. Capacitance of [...]