Jobs By Abekus

Electromagnetic-theory Questions Set 60:

Quiz Mode

The Lorentz force is based on:

Independent of both

Dot product

Cross product

Both dot and cross product

Solution:

When two waves have the same frequency and propagation constant, the resultant wave is called?

Stationary

Moving

Running

None of the Above

Solution:

Which of the following losses in a D.C. generator are dissipated in the form of heat?

(a) Mechanical loss

(b) Core loss

(d) All of the above

Solution:

Which type of motor is most suitable for signalling devices and many kinds of timers?

(a) DC shunt motor

(b) DC series motor

(d) Reluctance motor

Solution:

The currents and voltage in an AC circuit are given by:

I = 5 sin(100t - 90°) A

V = 200 sin(100t) V

The power dissipated in the circuit will be:

20 W

40 W

1000 W

Zero

Solution:

Calculate the beamwidth of the first null (BWFN) of an end-fire array with 65 elements and the distance between consecutive elements is λ/2.

14.21°

28.42°

56.84°

101.3°

Solution:

The normalized power pattern of a Hertzian dipole is sin²θ. Comment on this statement.

The statement is true

The statement is untrue

The statement is partially true

The statement is incomplete

Solution:

What will happen if a D.C. motor is connected across an A.C. supply?

The motor will run at normal speed

The motor will not run

The motor will run at a lower speed

The motor will burn due to heat produced in the field winding by eddy currents

Solution:

A line of charge with linear charge density 5 nC/m and length 2 m is along the x-axis with its midpoint at the origin in free space. Find the electric field intensity at point P(0, 3, 5).

7.931 a_y + 13.2 a_z

7.931 a_x + 13.2 a_y

7.931 a_y + 13.2 a_x

7.931 a_z + 13.2 a_y

Solution:

Consider the following statements about the magnetic interface conditions:

H_t (tangential magnetic field) and B_n (normal magnetic flux density) are always continuous at an interface.

B_n is always continuous, but H_t can be discontinuous.

Which of the following is correct?

Both 1 & 2 are true

Only 1 is correct

Only 2 is correct

Both 1 & 2 are untrue

Electromagnetic-theory Questions Set 60:

The Lorentz force is based on:

Solution:

When two waves have the same frequency and propagation constant, the resultant wave is called?

Solution:

Which of the following losses in a D.C. generator are dissipated in the form of heat?

Solution:

Which type of motor is most suitable for signalling devices and many kinds of timers?

Solution:

The currents and voltage in an AC circuit are given by:

I = 5 sin(100t - 90°) A

V = 200 sin(100t) V

The power dissipated in the circuit will be:

Solution:

Calculate the beamwidth of the first null (BWFN) of an end-fire array with 65 elements and the distance between consecutive elements is λ/2.

Solution:

The normalized power pattern of a Hertzian dipole is sin²θ. Comment on this statement.

Solution:

What will happen if a D.C. motor is connected across an A.C. supply?

Solution:

A line of charge with linear charge density 5 nC/m and length 2 m is along the x-axis with its midpoint at the origin in free space. Find the electric field intensity at point P(0, 3, 5).

Solution:

Consider the following statements about the magnetic interface conditions:

H_t (tangential magnetic field) and B_n (normal magnetic flux density) are always continuous at an interface.

B_n is always continuous, but H_t can be discontinuous.

Which of the following is correct?

Solution:

Related Question Sets:

Related Topics:

Electromagnetic-theory Questions Set 60:

The Lorentz force is based on:

Solution:

When two waves have the same frequency and propagation constant, the resultant wave is called?

Solution:

Which of the following losses in a D.C. generator are dissipated in the form of heat?

Solution:

Which type of motor is most suitable for signalling devices and many kinds of timers?

Solution:

The currents and voltage in an AC circuit are given by: I = 5 sin(100t - 90°) A V = 200 sin(100t) V The power dissipated in the circuit will be:

Solution:

Calculate the beamwidth of the first null (BWFN) of an end-fire array with 65 elements and the distance between consecutive elements is λ/2.

Solution:

The normalized power pattern of a Hertzian dipole is sin2θ. Comment on this statement.

Solution:

What will happen if a D.C. motor is connected across an A.C. supply?

Solution:

A line of charge with linear charge density 5 nC/m and length 2 m is along the x-axis with its midpoint at the origin in free space. Find the electric field intensity at point P(0, 3, 5).

Solution:

Consider the following statements about the magnetic interface conditions: Ht (tangential magnetic field) and Bn (normal magnetic flux density) are always continuous at an interface. Bn is always continuous, but Ht can be discontinuous. Which of the following is correct?

Solution:

Related Question Sets:

Related Topics:

The currents and voltage in an AC circuit are given by:

I = 5 sin(100t - 90°) A

V = 200 sin(100t) V

The power dissipated in the circuit will be:

The normalized power pattern of a Hertzian dipole is sin²θ. Comment on this statement.

Consider the following statements about the magnetic interface conditions:

H_t (tangential magnetic field) and B_n (normal magnetic flux density) are always continuous at an interface.

B_n is always continuous, but H_t can be discontinuous.

Which of the following is correct?