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Electromagnetic-theory Questions Set 34:

Quiz Mode

The condition for a wave to travel in waveguides is?

f< fc

f= 0

f> fc

-infinity<f<0

Solution:

The angular separation between the vectors A = 4i + 3j + 5k and B = i - 2j + 2k is (in degrees)

86.5°

28.42°

67.8°

89.96°

Solution:

What are the two main types of antenna aperture?

Linear and elliptical

Physical and effective

Rectangular and circular

Polar and non-polar

Solution:

The direction of the induced electromotive force (emf) can be found using

Laplace's law

Kirchhoff's voltage law

Lenz's law

Fleming's right-hand rule

Solution:

A wave passing through two media having intrinsic impedances of 3.2 and 4.4 respectively. Find the reflection coefficient of the wave.

6.34

0.16

0.72

1.38

Solution:

The main disadvantages of the Ward-Leonard control method are

(b) High maintenance cost

(a) High initial cost

(d) All of the above

Solution:

The incident power of a transmission line is 2.5 times more than the reflected power. What is the reflection coefficient of the transmission line?

0.4

1.58

0.63

2.5

Solution:

When the armature of a DC motor rotates, the induced electromotive force (EMF) is called

(a) Self-induced EMF

(b) Mutually induced EMF

(d) None of the above

Solution:

Identify the type of polarization of the given wave:

E_x = 5 cos ωt and E_y = 5 cos (ωt + 90°).

Linear Polarization

Circular Polarization

Elliptical Polarization

Perpendicular Polarization

Solution:

Identify the polarization of the wave when E_x = 5 cos ωt and E_y = 3 sin ωt. The phase difference is 90°.

Left-hand elliptically polarized

Right-hand elliptically polarized

Left-hand circularly polarized

Right-hand circularly polarized

Electromagnetic-theory Questions Set 34:

The condition for a wave to travel in waveguides is?

Solution:

The angular separation between the vectors A = 4i + 3j + 5k and B = i - 2j + 2k is (in degrees)

Solution:

What are the two main types of antenna aperture?

Solution:

The direction of the induced electromotive force (emf) can be found using

Solution:

A wave passing through two media having intrinsic impedances of 3.2 and 4.4 respectively. Find the reflection coefficient of the wave.

Solution:

The main disadvantages of the Ward-Leonard control method are

Solution:

The incident power of a transmission line is 2.5 times more than the reflected power. What is the reflection coefficient of the transmission line?

Solution:

When the armature of a DC motor rotates, the induced electromotive force (EMF) is called

Solution:

Identify the type of polarization of the given wave:

E_x = 5 cos ωt and E_y = 5 cos (ωt + 90°).

Solution:

Identify the polarization of the wave when E_x = 5 cos ωt and E_y = 3 sin ωt. The phase difference is 90°.

Solution:

Related Question Sets:

Related Topics:

Electromagnetic-theory Questions Set 34:

The condition for a wave to travel in waveguides is?

Solution:

The angular separation between the vectors A = 4i + 3j + 5k and B = i - 2j + 2k is (in degrees)

Solution:

What are the two main types of antenna aperture?

Solution:

The direction of the induced electromotive force (emf) can be found using

Solution:

A wave passing through two media having intrinsic impedances of 3.2 and 4.4 respectively. Find the reflection coefficient of the wave.

Solution:

The main disadvantages of the Ward-Leonard control method are

Solution:

The incident power of a transmission line is 2.5 times more than the reflected power. What is the reflection coefficient of the transmission line?

Solution:

When the armature of a DC motor rotates, the induced electromotive force (EMF) is called

Solution:

Identify the type of polarization of the given wave: Ex = 5 cos ωt and Ey = 5 cos (ωt + 90°).

Solution:

Identify the polarization of the wave when Ex = 5 cos ωt and Ey = 3 sin ωt. The phase difference is 90°.

Solution:

Related Question Sets:

Related Topics:

Identify the type of polarization of the given wave:

E_x = 5 cos ωt and E_y = 5 cos (ωt + 90°).

Identify the polarization of the wave when E_x = 5 cos ωt and E_y = 3 sin ωt. The phase difference is 90°.