Volume 2
A combination of capacitors is set up as shown in the figure. The magnitude of the electric field, due to a point charge Q (having a charge equal to the sum of the charges on the 4μF and 9μF capacitors), at a point distance 30 m from it, would equal to
05
Dec
A combination of capacitors is set up as shown in the figure. The magnitude of the electric field, due to a point charge Q (having a charge equal to the sum of the charges on the 4μF and 9μF capacitors), at a point distance 30 m from it, would equal to A combination of capacitors [...]
The region between two concentric spheres of radii ‘a’ and ‘b’, respectively (see figure), have volume charge density ρ=A/r, where A is a constant and r is the distance from the centre. At the centre of the spheres is a point charge Q. The value of A such that the electric field in the region between the spheres will be constant, is:
05
Dec
The region between two concentric spheres of radii ‘a’ and ‘b’, respectively (see figure), have volume charge density ρ=A/r, where A is a constant and r is the distance from the centre. At the centre of the spheres is a point charge Q. The value of A such that the electric field in the region [...]
An electric dipole has a fixed dipole moment p , which makes angles θ with respect to x-axis. When subjected to an electric field E 1=Ei^, it experiences a torque T1=τk^. When subjected to another electric field E2=3–√E1j^ it experiences a torque T 2=−T1. The angle θ is
05
Dec
An electric dipole has a fixed dipole moment p , which makes angles θ with respect to x-axis. When subjected to an electric field E 1=Ei^, it experiences a torque T1=τk^. When subjected to another electric field E2=3–√E1j^ it experiences a torque T 2=−T1. The angle θ is An electric dipole has a fixed dipole [...]
A capacitance of 2μF is required in an electrical circuit across a potential difference of 1kV. A large number of 1μF capacitors are available which can withstand a potential difference of not more than 300v. The minimum number of capacitors required to achieve this is
05
Dec
A capacitance of 2μF is required in an electrical circuit across a potential difference of 1kV. A large number of 1μF capacitors are available which can withstand a potential difference of not more than 300v. The minimum number of capacitors required to achieve this is The given graph shows variation (with distance r from center) [...]
A parallel plate capacitor of capacitance 90 pF is connected to a battery of emf 20 V. If a dielectric material of dielectric constant K= 5/3 is inserted between the plates, the magnitude of the induced charge will be :
05
Dec
A parallel plate capacitor of capacitance 90 pF is connected to a battery of emf 20 V. If a dielectric material of dielectric constant K= 5/3 is inserted between the plates, the magnitude of the induced charge will be : A parallel plate capacitor of capacitance 90 pF is connected to a battery of emf [...]
Three concentric metal shells A, B and C of respective radii a, b and c (a < b < c) have surface charge densities +σ,−σ and +σ respectively. The potential of shell B is :
05
Dec
Three concentric metal shells A, B and C of respective radii a, b and c (a < b < c) have surface charge densities +σ,−σ and +σ respectively. The potential of shell B is : −σ and +σ respectively. The potential of shell B is? b and c (a < b < c) have surface [...]
In the circuit shown, find C if the effective capacitance of the whole, circuit is to be 0.5μF. All values in the circuit are in μF.
05
Dec
In the circuit shown, find C if the effective capacitance of the whole, circuit is to be 0.5μF. All values in the circuit are in μF. circuit is to be 0.5μF. All values in the circuit are in μF. find C if the effective capacitance of the whole In the circuit shown December 5, 2020 [...]
A parallel plate capacitor with plates of area 1m^2 each, are at a separation of 0.1m. If the electric field between the plates is 100 N/C, the magnitude of charge on each plate is : (Take ε0 = 8.85×10^−12 C^2/N−m^2)
05
Dec
A parallel plate capacitor with plates of area 1m^2 each, are at a separation of 0.1m. If the electric field between the plates is 100 N/C, the magnitude of charge on each plate is : (Take ε0 = 8.85×10^−12 C^2/N−m^2) A parallel plate capacitor with plates of area 1m^2 each are at a separation of [...]
The charge on a capacitor plate in a circuit, as a function of time, is shown in the figure: What is the value of current at t=4s ?
05
Dec
The charge on a capacitor plate in a circuit, as a function of time, is shown in the figure: What is the value of current at t=4s ? as a function of time is shown in the figure: What is the value of current at t=4s ? The charge on a capacitor plate in a [...]
Determine the electric dipole moment of the system of three charges , placed on the vertices of an equilateral triangle , as shown in the figure :
05
Dec
Determine the electric dipole moment of the system of three charges , placed on the vertices of an equilateral triangle , as shown in the figure : As shown in the figure Determine the electric dipole moment of the system of three charges placed on the vertices of an equilateral triangle December 5, 2020 Category: [...]