A perfectly conducting filament containing a 250Ω resistor is formed into a square as shown in fig.
Que: If B = 6 cos (120πt  30^{0} )u_{z }T, then the value of I(t) is
A perfectly conducting filament containing a 250Ω resistor is formed into a square as shown in fig.
Que:
If B = 2 cosπ(ct  y) u_{z} μT, where c is the velocity of light, then I(t) is
Consider the fig. The rails have a resistance of 2 Ω/m. The bar moves to the right at a constant speed of 9 m/s in a uniform magnetic field of 0.8 T. The bar is at x = 2 m at t = 0.
Que: If 6 Ω resistor is present across the leftend with the right end opencircuited, then at t = 0.5 sec the current I is
The flux in the lefthand closed loop is
Consider the fig. The rails have a resistance of 2 Ω/m. The bar moves to the right at a constant speed of 9 m/s in a uniform magnetic field of 0.8 T. The bar is at x = 2 m at t = 0.
Que: If 6 Ω resistor is present across each end, then I at 0.5 sec is
In this case, there will be contribution to the current from the right loop, which is now closed. The flux in the right loop, whose area decreases with time, is
The internal dimension of a coaxial capacitor is a = 1.2 cm, b = 4 cm and c = 40 cm. The homogeneous material inside the capacitor has the parameter ε = 10^{11} F/m, μ = 10^{}^{5}H/m and σ =10^{}^{5 }S/m.The electric field intensity is
Que: The current density J is
The internal dimension of a coaxial capacitor is a = 1.2 cm, b = 4 cm and c = 40 cm. The homogeneous material inside the capacitor has the parameter ε = 10^{11} F/m, μ = 10^{}^{5}H/m and σ =10^{}^{5 }S/m.The electric field intensity is
Que: The quality factor of the capacitor is
Total conduction current
The following fields exist in charge free regions
The possible electromagnetic fields are
A parallelplate capacitor with plate area of 5 cm^{2 }and plate separation of 3 mm has a voltage 50 sin (10^{3} t) V applied to its plates. If ε_{r} = 2, the displacement current is
In a coaxial transmission line (ε_{r} = 1), the electric field intensity is given by
The displacement current density is
Consider the region defined by x,y and z < 1. Let ε = 5ε_{0} , μ = 4μ_{o} and σ = 0 the displacement current densityJ_{d} = 20cos(1.5 x 10^{8} t  ax)u_{y} μA/m^{2}. Assume no DC fields are present.
Consider the region defined by x,y and z < 1. Let ε = 5ε_{0} , μ = 4μ_{o} and σ = 0 the displacement current densityJ_{d} = 20cos(1.5 x 10^{8} t  ax)u_{y} μA/m^{2}. Assume no DC fields are present.
Que: The magnetic field intensity is
Consider the region defined by x,y and z < 1. Let ε = 5ε_{0} , μ = 4μ_{o} and σ = 0 the displacement current densityJ_{d} = 20cos(1.5 x 10^{8} t  ax)u_{y} μA/m^{2}. Assume no DC fields are present.
Que: The value of α is
Let H = 2cos(10^{10}  βx) u_{z} A/m, μ = 3 x 10^{5} H/m, ε = 1.2 x 10^{10} F/m and σ = 0 everywhere.
Que: The electric flux density D is
Let H = 2cos(10^{10}  βx) u_{z} A/m, μ = 3 x 10^{5} H/m, ε = 1.2 x 10^{10} F/m and σ = 0 everywhere.
Que: The magnetic flux density B is
A material has σ = 0 and ε_{r} = 1. The magnetic field intensity is H = 4cos ( 10^{6}t  0.01z)μ_{y} A/m.
Que: The electric field intensity E is
A material has σ = 0 and ε_{r} = 1. The magnetic field intensity is H = 4cos ( 10^{6}t  0.01z)μ_{y} A/m.
Que: The value of μ_{r} is
The surface ρ = 3 and 10 mm, and z = 0 and 25 cm are perfect conductors. The region enclosed by these surface has μ = 25 x 10^{6} H/m, ε = 4 x 10^{11} F/m and σ = 0. If H = 2/ρ cos8πz cosωt u_{ø} A/m, then the value of ω is
For distilled water μ = μ_{o} , ε = 81ε_{o} and σ = 2 x 10^{3 }S/m, the ratio of conduction current density to displacement current density at 1 GHz is
A conductor with crosssectional area of 10 cm^{2 }carrier a conductor current 2sin (10^{9} t) mA. If σ = 2.5 x 10^{6} S/m and ε_{r} 4.6 the magnitude of the displacement current density is
In a certain region
If volume charge density ρ_{v} in z = 0 plane is zero, then ρ_{v} is
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