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Electromagnetic-theory Questions Set 61:

Quiz Mode

If the voltage drops from 220 V to 22 V, the current in the primary coil will be:

0.1 A

1 A

10 A

0.01 A

Solution:

Calculate the characteristic impedance of a transmission line with an impedance of 25 Ω and admittance of 15 S.

5 Ω

3.87 Ω

1.29 Ω

0.78 Ω

Solution:

The phase constant of a TEM (Transverse Electric Magnetic) wave in a waveguide is 3.5 units. Find the guided phase constant.

3.5

1.75

Solution:

The magnetic field in a travelling electromagnetic wave has a peak value of 20 nT. The peak value of the electric field strength is

3 V/m

6 V/m

9 V/m

12 V/m

Solution:

The work done in a power transmission is 170 units, and the E and H components are 35 units and 60 units, respectively. Calculate the velocity of propagation.

12.35 m/s

99.167 m/s

2.834 m/s

85 m/s

Solution:

What is the ratio of half-power beamwidth (HPBW) of the end-fire array to the extended end-fire array for an N-element isotropic antenna array with a large N?

1 : 0.707

1.414 : 1

0.707 : 1

2.828 : 1

Solution:

The Cork Screw rule is used to determine the direction of the magnetic field produced by a current-carrying wire.

direction of current

direction of magnetic field

direction of electric field

direction of emf

Solution:

In an LR-circuit with L = 0.4/3.14 H and R = 30 Ω, if the circuit has an alternating emf of 220 volts at 50 Hz, the impedance and current in the circuit will be:

40.4 Ω, 4.4 A

50 Ω, 4.4 A

3.07 Ω, 6.0 A

11.4 Ω, 17.5 A

Solution:

In a region, steady and uniform electric and magnetic fields are present. These two fields are parallel to each other. A charged particle is released from rest in the region. The path of the particle will be

Ellipse

Circle

Helix

Straight line

Solution:

Statement: Displacement flux density is independent of the permittivity of the medium.

Is the above statement correct?

The given statement is partially true

The given statement is incorrect

The given statement is incomplete

The given statement is absolutely true

Electromagnetic-theory Questions Set 61:

If the voltage drops from 220 V to 22 V, the current in the primary coil will be:

Solution:

Calculate the characteristic impedance of a transmission line with an impedance of 25 Ω and admittance of 15 S.

Solution:

The phase constant of a TEM (Transverse Electric Magnetic) wave in a waveguide is 3.5 units. Find the guided phase constant.

Solution:

The magnetic field in a travelling electromagnetic wave has a peak value of 20 nT. The peak value of the electric field strength is

Solution:

The work done in a power transmission is 170 units, and the E and H components are 35 units and 60 units, respectively. Calculate the velocity of propagation.

Solution:

What is the ratio of half-power beamwidth (HPBW) of the end-fire array to the extended end-fire array for an N-element isotropic antenna array with a large N?

Solution:

The Cork Screw rule is used to determine the direction of the magnetic field produced by a current-carrying wire.

Solution:

In an LR-circuit with L = 0.4/3.14 H and R = 30 Ω, if the circuit has an alternating emf of 220 volts at 50 Hz, the impedance and current in the circuit will be:

Solution:

In a region, steady and uniform electric and magnetic fields are present. These two fields are parallel to each other. A charged particle is released from rest in the region. The path of the particle will be

Solution:

Statement: Displacement flux density is independent of the permittivity of the medium.

Is the above statement correct?

Solution:

Related Question Sets:

Related Topics:

Electromagnetic-theory Questions Set 61:

If the voltage drops from 220 V to 22 V, the current in the primary coil will be:

Solution:

Calculate the characteristic impedance of a transmission line with an impedance of 25 Ω and admittance of 15 S.

Solution:

The phase constant of a TEM (Transverse Electric Magnetic) wave in a waveguide is 3.5 units. Find the guided phase constant.

Solution:

The magnetic field in a travelling electromagnetic wave has a peak value of 20 nT. The peak value of the electric field strength is

Solution:

The work done in a power transmission is 170 units, and the E and H components are 35 units and 60 units, respectively. Calculate the velocity of propagation.

Solution:

What is the ratio of half-power beamwidth (HPBW) of the end-fire array to the extended end-fire array for an N-element isotropic antenna array with a large N?

Solution:

The Cork Screw rule is used to determine the direction of the magnetic field produced by a current-carrying wire.

Solution:

In an LR-circuit with L = 0.4/3.14 H and R = 30 Ω, if the circuit has an alternating emf of 220 volts at 50 Hz, the impedance and current in the circuit will be:

Solution:

In a region, steady and uniform electric and magnetic fields are present. These two fields are parallel to each other. A charged particle is released from rest in the region. The path of the particle will be

Solution:

Statement: Displacement flux density is independent of the permittivity of the medium. Is the above statement correct?

Solution:

Related Question Sets:

Related Topics:

Statement: Displacement flux density is independent of the permittivity of the medium.

Is the above statement correct?