Description : Calculate the conduction density of a material with resistivity of 0.02 units and electric intensity of 12 units. a) 300 b) 600 c) 50 d) 120
Last Answer : b) 600
Description : Calculate the electric field when the conductivity is 20 units, electron density is 2.4 units and the velocity is 10m/s. Assume the conduction and convection current densities are same. a) 2.4 b) 4.8 c) 3.6 d) 1.2
Last Answer : d) 1.2
Description : Find the current density of a material with resistivity 20 units and electric field intensity 2000 units. a) 400 b) 300 c) 200 d) 100
Last Answer : d) 100
Description : Find the conduction current density of a material with conductivity 200units and electric field 1.5 units. a) 150 b) 30 c) 400/3 d) 300
Last Answer : d) 300
Description : Find the conductivity of a material with conduction current density 100 units and electric field of 4 units. a) 25 b) 400 c) 0.04 d) 1600
Last Answer : a) 25
Description : Find the conduction current density when conductivity of a material is 500 units and corresponding electric field is 2 units. a) 500 b) 250 c) 1000 d) 2000
Last Answer : c) 1000
Description : Calculate the power of a material with electric field 100 units at a distance of 10cm with a current of 2A flowing through it. a) 10 b) 20 c) 40 d) 80
Last Answer : b) 20
Description : Find the loss tangent of a material with conduction current density of 5 units and displacement current density of 10 units. a) 2 b) 0.5 c) 5 d) 10
Last Answer : b) 0.5
Description : Calculate the energy in an electric field with flux density 6 units and field intensity of 4 units. a) 12 b) 24 c) 36 d) 48
Last Answer : a) 12
Description : Compute the conductivity when the current density is 12 units and the electric field is 20 units. Also identify the nature of the material. a) 1.67, dielectric b) 1.67, conductor c) 0.6, dielectric d) 0.6, conductor
Last Answer : c) 0.6, dielectric
Description : Calculate the electric field due to a surface charge of 20 units on a plate in air(in 10 12 order) a) 2.19 b) 1.12 c) 9.21 d) 2.91
Last Answer : b) 1.12
Description : Find the electric flux density surrounding a material with field intensity of 2xyz placed in transformer oil ( εr = 2.2) at the point P(1,2,3) is (in 10 -10 units) a) 2.1 b) 2.33 c) 2.5 d) 2.77
Last Answer : c) 2.5
Description : Find the electric field intensity of transformer oil (εr = 2 approx) with density 1/4π (in 10 9 units) a) 2.5 b) 3.5 c) 4.5 d) 5.5
Last Answer : c) 4.5
Description : Calculate the frequency at which the conduction and displacement currents become equal with unity conductivity in a material of permittivity 2. a) 18 GHz b) 9 GHz c) 36 GHz d) 24 GHz
Last Answer : b) 9 GHz
Description : Find the magnitude of the displacement current density in air at a frequency of 18GHz in frequency domain. Take electric field E as 4 units. a) 18 b) 72 c) 36 d) 4
Last Answer : d) 4
Description : Calculate the emf of a material having flux density 5sin t in an area of 0.5 units. a) 2.5 sin t b) -2.5 cos t c) -5 sin t d) 5 cos t
Last Answer : d) 5 cos t
Description : Calculate the polarisation vector in air when the susceptibility is 5 and electric field is 12 units. a) 3 b) 2 c) 60 d) 2.4
Last Answer : c) 60
Description : Find the resistivity of a material having resistance 20kohm, area 2 units and length of 12m. a) 6666.6 b) 3333.3 c) 1200 d) 2000
Last Answer : b) 3333.3
Description : Calculate the magnetization of a material with susceptibility of 50 and field intensity of 0.25 units. a) 12.5 b) 25 c) 75 d) 37.5
Last Answer : a) 12.5
Description : The magnitude of the conduction current density for a magnetic field intensity of a vector yi + zj + xk will be a) 1.414 b) 1.732 c) -1.414 d) -1.732
Last Answer : b) 1.732
Description : Calculate the convection current when electron density of 200 units is travelling at a speed of 12m/s. a) 16.67 b) 2400 c) 2880 d) 0.0
Last Answer : b) 2400
Description : The conductivity of a material with current density 1 unit and electric field 200 μV is a) 2000 b) 3000 c) 4000 d) 5000
Last Answer : d) 5000
Description : Find the electric flux density of a material whose charge density is given by 12 units in a volume region of 0.5 units. a) 12 b) 24 c) 6 d) 48
Last Answer : c) 6
Description : The power per unit velocity of a wave with electric field as 8 units and density 10 units is a) 40 b) 20 c) 80 d) 160
Last Answer : c) 80
Description : The electric field intensity of a field with velocity 10m/s and flux density of 2.8 units is a) 0.28 b) 28 c) 280 d) 10/2.8
Last Answer : b) 28
Description : Find the electric field when the velocity of the field is 12m/s and the flux density is 8.75 units. a) 510 b) 105 c) 150 d) 165
Last Answer : b) 105
Description : Find the electric flux density of a material with charge density 16 units in unit volume. a) 1/16 b) 16t c) 16 d) 162
Last Answer : c) 16
Description : Find the magnetic field intensity of a material with flux density of 24 units in air(in 10 6 order) a) 19.09 b) 21 c) 25 d) 26.78
Last Answer : a) 19.09
Description : Find the total flux in a material of flux density 15 units in an area of 24 units. a) 3.6 b) 7.2 c) 9.6 d) 5.4
Last Answer : a) 3.6
Description : Calculate the energy in an electric field with permittivity of 56 and field intensity of 36π(in μJ) a) 3.16 b) 5.16 c) 7.16 d) 9.16
Last Answer : a) 3.16
Description : Calculate the displacement current density when the electric flux density is 20sin 0.5t. a) 10sin 0.5t b) 10cos 0.5t c) 20sin 2t d) 20cos 2t
Last Answer : b) 10cos 0.5t
Description : Find the flux enclosed by a material of flux density 12 units in an area of 80cm. a) 9.6 b) 12/80 c) 80/12 d) 12/0.8
Last Answer : a) 9.6
Description : Zero permeability/permittivity implies which state? a) No ions are allowed in the medium b) No current is generated in the medium c) No magnetic or electric energy is permitted in the medium d) No resistivity
Last Answer : c) No magnetic or electric energy is permitted in the medium
Description : If the potential is given by, V = 10sin θ cosφ/r, find the density at the point P(2, π/2, 0) (in 10 -12 units) a) 13.25 b) 22.13 c) 26.31 d) 31.52
Last Answer : b) 22.13
Description : Find the magnetic field intensity when the current density is 0.5 units for an area up to 20 units. a) 10 b) 5 c) 20 d) 40
Last Answer : a) 10
Description : The power of a wave in a cylindrical waveguide of radius 2m with electric field 12 units is a) 2.39 b) 3.92 c) 9.23 d) 9.32
Last Answer : a) 2.39
Description : Find the mobility of the electrons when the drift velocity is 23 units and the electric field is 11 units. a) 1.1 b) 2.2 c) 3.2 d) 0.9
Last Answer : b) 2.2
Description : The total current density is given as 0.5i + j – 1.5k units. Find the curl of the magnetic field intensity. a) 0.5i – 0.5j + 0.5k b) 0.5i + j -1.5k c) i – j + k d) i + j – k
Last Answer : b) 0.5i + j -1.5k
Description : Find the magnetic field intensity due to an infinite sheet of current 5A and charge density of 12j units in the positive y direction and the z component is below the sheet. a) 6 b) 0 c) -6 d) 60k
Last Answer : c) -6
Description : Find the magnetic field intensity due to an infinite sheet of current 5A and charge density of 12j units in the positive y direction and the z component is above the sheet. a) -6 b) 12k c) 60 d) 6
Last Answer : d) 6
Description : The bound charge density and free charge density are 12 and 6 units respectively. Calculate the susceptibility. a) 1 b) 0 c) 2 d) 72
Last Answer : c) 2
Description : Compute the power consumed by a material with current density 15 units in an area of 100 units. The potential measured across the material is 20V. a) 100kJ b) 250kJ c) 30kJ d) 15kJ
Last Answer : c) 30kJ
Description : Conduction in metals is due to a) Electrons only b) Electrons and holes c) Holes only d) Applied electric field
Last Answer : a) Electrons only
Description : The torque on a conductor with flux density 23 units, current 1.6A and area 6.75 units will be a) 248.4 b) 192.6 c) 175.4 d) 256.9
Last Answer : a) 248.4
Description : Find the maximum force of the conductor having length 60cm, current 2.75A and flux density of 9 units. a) 14.85 b) 18.54 c) 84.25 d) 7.256
Last Answer : a) 14.85
Description : Find current density J when B = 50 x 10-6 units and area dS is 4 units. a) 9.94 b) 8.97 c) 7.92 d) 10.21
Last Answer : b) 8.97
Description : Find the current in a conductor with resistance 2 ohm, electric field 2 units and distance 100cm. a) 1A b) 10mA c) 10A d) 100mA
Last Answer : a) 1A
Description : Find the electric field due to charge density of 1/18 and distance from a point P is 0.5 in air(in 10 9 order) a) 0 b) 1 c) 2 d) 3
Description : Calculate the skin depth of a material with attenuation constant of 2 units. a) 2 b) 1 c) 0.5 d) 4
Last Answer : c) 0.5
Description : Calculate the reluctance of the material with a mmf of 3.5 units and flux of 7units. a) 32.5 b) 10.5 c) 0.5 d) 2
Last Answer : b) 10.5