Chapter 2 – Electrostatic Potential and Capacitance
Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 2 > Chapter 2 - Electrostatic Potential and Capacitance
Three charges +Q, q, +Q are placed respectively, at distance, 0, d/2 and d from the origin, on the x-axis. If the net force experienced by +Q placed at x=0, is zero, then value of q is :
05
Dec
Three charges +Q, q, +Q are placed respectively, at distance, 0, d/2 and d from the origin, on the x-axis. If the net force experienced by +Q placed at x=0, is zero, then value of q is : -q +Q are placed respectively at distance d/2 and d from the origin is zero on the [...]
Let a total charge 2Q be distributed in a sphere of radius R, with the charge density given by , ρ(r)=kr, where r is the distance from the centre. Two charge A and B, of –Q each, are placed on diametrically opposite points, at equal distance, a from the centre. If A and B do not experience any force, then:
05
Dec
Let a total charge 2Q be distributed in a sphere of radius R, with the charge density given by , ρ(r)=kr, where r is the distance from the centre. Two charge A and B, of –Q each, are placed on diametrically opposite points, at equal distance, a from the centre. If A and B do [...]
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a from the centre. If A and B do not experience any force ,
are placed on diametrically opposite points ,
at equal distance ,
Let a total charge 2Q be distributed in a sphere of radius R ,
of –Q each ,
then ,
where r is the distance from the centre. Two charge A and B ,
with the charge density given by ,
ρ(r)=kr ,
Two identical parallel plate capacitors, of capacitance C each, have plates of area A, separated by a distance d. The space between the plates of the two capacitors, is filled with three dielectrics, of equal thickness and dielectric constants K1,K2 and K3. The first capacitor is filled as shown in fig. I, and the second one is filled as shown in fig. II. If these two modified capacitors are charged by the same potential V, the ratio of the energy stored in the two, would be (E1 refers to capacitor (I) and E2 to capacitor (II)) :
05
Dec
Two identical parallel plate capacitors, of capacitance C each, have plates of area A, separated by a distance d. The space between the plates of the two capacitors, is filled with three dielectrics, of equal thickness and dielectric constants K1,K2 and K3. The first capacitor is filled as shown in fig. I, and the second [...]
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Chapter 2 - Electrostatic Potential and Capacitance
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Volume 2
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and the second one is filled as shown in fig. II. If these two modified capacitors are charged by the same potential V ,
have plates of area A ,
is filled with three dielectrics ,
K2 and K3. The first capacitor is filled as shown in fig. I ,
of capacitance C each ,
of equal thickness and dielectric constants K1 ,
separated by a distance d. The space between the plates of the two capacitors ,
the ratio of the energy stored in the two ,
Two identical parallel plate capacitors ,
would be (E1 refers to capacitor (I) and E2 to capacitor (II)) : ,
A point dipole p =−p0x^ is kept at the origin . The potential and electric field due to this dipole on the y-axis at a distance d are , respectively : (Take V = 0 at infinity) :
05
Dec
A point dipole p =−p0x^ is kept at the origin . The potential and electric field due to this dipole on the y-axis at a distance d are , respectively : (Take V = 0 at infinity) : A point dipole p =−p0x^ is kept at the origin . The potential and electric field due [...]
Shown in the figure is a shell made of a conductor. It has inner radius a and outer radius b, and carries charge Q. At its centre is a dipole p→ shown in this case:
05
Dec
Shown in the figure is a shell made of a conductor. It has inner radius a and outer radius b, and carries charge Q. At its centre is a dipole p→ shown in this case: and carries charge Q. At its centre is a dipole p→ shown in this case: Shown in the figure is [...]
A simple pendulum of length L is placed between the plates of a parallel plate capacitor having electric field E, as shown in figure. Its bob has mass m and charge q. The time period of the pendulum is given by :
05
Dec
A simple pendulum of length L is placed between the plates of a parallel plate capacitor having electric field E, as shown in figure. Its bob has mass m and charge q. The time period of the pendulum is given by : A simple pendulum of length L is placed between the plates of a [...]
In free space, a particle A of charge 1 μC is held fixed at a point P. Another particle B of the same charge and mass 4 μg is kept at a distance of 1 mm from P. if B is released, then its velocity at a distance of 9 mm from P is : [Take1/4πε0 = 9 × 10^9 Nm^2C^−2]
05
Dec
In free space, a particle A of charge 1 μC is held fixed at a point P. Another particle B of the same charge and mass 4 μg is kept at a distance of 1 mm from P. if B is released, then its velocity at a distance of 9 mm from P is : [...]
A current of 5A passes through a copper conductor (resistivity=1.7×10^−8 Ωm) of radius of cross-section 5mm. Find the mobility of the charges if their drift velocity is 1.1×10^−3 m/s
05
Dec
A current of 5A passes through a copper conductor (resistivity=1.7×10^−8 Ωm) of radius of cross-section 5mm. Find the mobility of the charges if their drift velocity is 1.1×10^−3 m/s A current of 5A passes through a copper conductor (resistivity=1.7×10^−8 Ωm) of radius of cross-section 5mm. Find the mobility of the charges if their drift velocity [...]
Figure shows charge (q) versus voltage (V) graph for series and parallel combination of two given capacitors. The capacitances are :
05
Dec
Figure shows charge (q) versus voltage (V) graph for series and parallel combination of two given capacitors. The capacitances are : Figure shows charge (q) versus voltage (V) graph for series and parallel combination of two given capacitors. The capacitances are : December 5, 2020 Category: Arihant Physics by D.C Pandey , Chapter 2 - [...]
The parallel combination of two air filled parallel plate capacitors of capacitance C and NC is connected to a battery of voltage, V. When the capacitors are fully charged, the battery is removed and after that a dielectric material of dielectric constant K is placed between the two plates of the first capacitor. The new potential difference of the combined system is?
05
Dec
The parallel combination of two air filled parallel plate capacitors of capacitance C and NC is connected to a battery of voltage, V. When the capacitors are fully charged, the battery is removed and after that a dielectric material of dielectric constant K is placed between the two plates of the first capacitor. The new [...]
Posted in:
Arihant Physics by D.C Pandey
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Chapter 2 - Electrostatic Potential and Capacitance
,
Volume 2
,
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the battery is removed and after that a dielectric material of dielectric constant K is placed between the two plates of the first capacitor. The new potential difference of the combined system is? ,
The parallel combination of two air filled parallel plate capacitors of capacitance C and NC is connected to a battery of voltage ,
V. When the capacitors are fully charged ,