Jobs By Abekus

Electromagnetic-theory Questions Set 30:

Quiz Mode

Which of the following represents Poynting's theorem?

P = E × H

P = I × H

P = I · H

P = E · H

Solution:

Which of the following represents Ohm's law?

V = RI

J = σE

I = GV

All of the above

None of the above

Solution:

The characteristic impedance of a distortion-free transmission line is:

Real

Complex

Capacitive

Inductive

Solution:

What is the reflection coefficient of a transmission line with a short-circuited load?

1.0∠0°

∞

1.0∠180°

Solution:

The three vertices of a triangle are located at A(6,-1,2), B(-2,3,-4), and C(-3,1,5). What is the value of the angle BAC at vertex A (in degrees)?

36.66

53.57

30.84

57.36

Solution:

In Ward-Leonard control, the lower limit of speed is imposed by

(a) residual magnetism of the generator

(b) core losses of the motor

(d) all of the above

Solution:

Calculate the peak electric field of an electromagnetic (EM) wave coming from a source S having an intensity of 1320 W/m².

(The intrinsic impedance of air, η, is 377 Ω.)

498.82 V/m

352.72 V/m

705.44 V/m

997.64 V/m

Solution:

The work done in a power transmission is 200 units, and the electric (E) and magnetic (H) field components are 45 units and 70 units respectively. Calculate the velocity of propagation.

15.75 m/s

20 m/s

4 m/s

5.75 m/s

Solution:

What is the electric flux density in rectangular coordinates at point (2, -3, 6) produced by a uniform line charge ρ_L = 20 μC/m on the x-axis (in μC/m²)?

-212 μC/m² a_y + 424 μC/m² a_z

212 μC/m² a_y - 424 μC/m² a_z

212 μC/m² a_x + 424 μC/m² a_y

212 μC/m² a_z - 424 μC/m² a_y

Solution:

When a current I flows along the length of an infinitely long, straight, thin-walled pipe, the magnetic field inside the pipe is:

The magnetic field at any point inside the pipe is zero.

The magnetic field is zero only on the axis of the pipe.

The magnetic field is different at different points inside the pipe.

The magnetic field at all points inside the pipe is the same, but not zero.

Electromagnetic-theory Questions Set 30:

Which of the following represents Poynting's theorem?

Solution:

Which of the following represents Ohm's law?

Solution:

The characteristic impedance of a distortion-free transmission line is:

Solution:

What is the reflection coefficient of a transmission line with a short-circuited load?

Solution:

The three vertices of a triangle are located at A(6,-1,2), B(-2,3,-4), and C(-3,1,5). What is the value of the angle BAC at vertex A (in degrees)?

Solution:

In Ward-Leonard control, the lower limit of speed is imposed by

Solution:

Calculate the peak electric field of an electromagnetic (EM) wave coming from a source S having an intensity of 1320 W/m².

(The intrinsic impedance of air, η, is 377 Ω.)

Solution:

The work done in a power transmission is 200 units, and the electric (E) and magnetic (H) field components are 45 units and 70 units respectively. Calculate the velocity of propagation.

Solution:

What is the electric flux density in rectangular coordinates at point (2, -3, 6) produced by a uniform line charge ρ_L = 20 μC/m on the x-axis (in μC/m²)?

Solution:

When a current I flows along the length of an infinitely long, straight, thin-walled pipe, the magnetic field inside the pipe is:

Solution:

Related Question Sets:

Related Topics:

Electromagnetic-theory Questions Set 30:

Which of the following represents Poynting's theorem?

Solution:

Which of the following represents Ohm's law?

Solution:

The characteristic impedance of a distortion-free transmission line is:

Solution:

What is the reflection coefficient of a transmission line with a short-circuited load?

Solution:

The three vertices of a triangle are located at A(6,-1,2), B(-2,3,-4), and C(-3,1,5). What is the value of the angle BAC at vertex A (in degrees)?

Solution:

In Ward-Leonard control, the lower limit of speed is imposed by

Solution:

Calculate the peak electric field of an electromagnetic (EM) wave coming from a source S having an intensity of 1320 W/m². (The intrinsic impedance of air, η, is 377 Ω.)

Solution:

The work done in a power transmission is 200 units, and the electric (E) and magnetic (H) field components are 45 units and 70 units respectively. Calculate the velocity of propagation.

Solution:

What is the electric flux density in rectangular coordinates at point (2, -3, 6) produced by a uniform line charge ρL = 20 μC/m on the x-axis (in μC/m²)?

Solution:

When a current I flows along the length of an infinitely long, straight, thin-walled pipe, the magnetic field inside the pipe is:

Solution:

Related Question Sets:

Related Topics:

Calculate the peak electric field of an electromagnetic (EM) wave coming from a source S having an intensity of 1320 W/m².

(The intrinsic impedance of air, η, is 377 Ω.)

What is the electric flux density in rectangular coordinates at point (2, -3, 6) produced by a uniform line charge ρ_L = 20 μC/m on the x-axis (in μC/m²)?