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Electromagnetic-theory Questions Set 87:

Quiz Mode

curl(grad(p)) is always equal to 0

(where p is a non-zero scalar quantity )

grad(p)

curl(p)

div(curl(p))

0 (zero)

Solution:

The magnetic vector potential due to a single infinitely long conductor carrying current is

zero

none of the above

finite

infinite

Solution:

The velocity factor of a transmission line depends on

temperature

skin effect

relative permittivity of dielectric

none of the above

Solution:

Which of the following formulas correctly describes the Radiation Intensity of an Antenna?

Pr / (4π × r^2)

Pr / Pt

4π U / Pr

Pr / 4π

Solution:

What is the capacitance between a pair of parallel wires, each with a diameter of 1 cm, separated by a distance of 50 cm?

6 pF

6 mF

6 nF

6 F

Solution:

In which coordinate system is the divergence theorem for a surface consisting of a sphere computed?

Cartesian

Spherical

Cylindrical

Depends on the function

Solution:

Which type of DC motor has the maximum self-relieving property?

(a) Series motor

(b) Shunt motor

(d) Differentially compounded motor

Solution:

For a constant-torque drive, which speed control method is preferred?

(a) Field control

(b) Armature voltage control

(d) Mechanical loading system

Solution:

Calculate the work done in the power transmission when the electric field, E = 45 units and the magnetic field intensity, H = 65 units. The velocity of propagation is 15 m/s.

675 units

975 units

195 units

175 units

Solution:

Under the influence of the Coulomb field of a charge +Q, a charge -Q is moving around it in an elliptical orbit. Which of the following statements is/are correct?

The angular momentum of the charge -Q is constant.

The linear momentum of the charge -Q is constant.

The angular speed of the charge -Q is constant.

The linear speed of the charge -Q is constant.

Electromagnetic-theory Questions Set 87:

curl(grad(p)) is always equal to 0

(where p is a non-zero scalar quantity )

Solution:

The magnetic vector potential due to a single infinitely long conductor carrying current is

Solution:

The velocity factor of a transmission line depends on

Solution:

Which of the following formulas correctly describes the Radiation Intensity of an Antenna?

Solution:

What is the capacitance between a pair of parallel wires, each with a diameter of 1 cm, separated by a distance of 50 cm?

Solution:

In which coordinate system is the divergence theorem for a surface consisting of a sphere computed?

Solution:

Which type of DC motor has the maximum self-relieving property?

Solution:

For a constant-torque drive, which speed control method is preferred?

Solution:

Calculate the work done in the power transmission when the electric field, E = 45 units and the magnetic field intensity, H = 65 units. The velocity of propagation is 15 m/s.

Solution:

Under the influence of the Coulomb field of a charge +Q, a charge -Q is moving around it in an elliptical orbit. Which of the following statements is/are correct?

Solution:

Related Question Sets:

Related Topics:

Electromagnetic-theory Questions Set 87:

curl(grad(p)) is always equal to 0 (where p is a non-zero scalar quantity )

Solution:

The magnetic vector potential due to a single infinitely long conductor carrying current is

Solution:

The velocity factor of a transmission line depends on

Solution:

Which of the following formulas correctly describes the Radiation Intensity of an Antenna?

Solution:

What is the capacitance between a pair of parallel wires, each with a diameter of 1 cm, separated by a distance of 50 cm?

Solution:

In which coordinate system is the divergence theorem for a surface consisting of a sphere computed?

Solution:

Which type of DC motor has the maximum self-relieving property?

Solution:

For a constant-torque drive, which speed control method is preferred?

Solution:

Calculate the work done in the power transmission when the electric field, E = 45 units and the magnetic field intensity, H = 65 units. The velocity of propagation is 15 m/s.

Solution:

Under the influence of the Coulomb field of a charge +Q, a charge -Q is moving around it in an elliptical orbit. Which of the following statements is/are correct?

Solution:

Related Question Sets:

Related Topics:

curl(grad(p)) is always equal to 0

(where p is a non-zero scalar quantity )