1000+ Electromagnetic-theory Questions

Electromagnetic-theory Questions Set 1:

Quiz Mode

Which of the following is called non-reciprocal devices

Isolator

Directional Coupler

Circulator

Attenuator

Solution:

Each kilometer of travel in electromagnetic radiation means a time delay of

330 μs

33 μs

3.3 μs

0.33 μs

Solution:

A wave has a resistance of 16.4 Ω in a 52 Ω line. Find the attenuation coefficient of the wave.

0.32

0.16

3.17

0.63

Solution:

The time period of a charged particle undergoing circular motion in a uniform magnetic field is independent of its

Speed

Mass

Charge

Magnetic induction

Solution:

The characteristic impedance Z_o of a transmission line is given by the formula:

(R + jωL)(G + jωC)

(R + jωL) / (G + jωC)

Square of ((R + jωL)/(G + jωC))

Square root of ((R + jωL)/(G + jωC))

Solution:

What are the key advantages of using microwaves?

Smaller component size leads to smaller systems.

Narrower bandwidth due to lower frequency.

More crowded frequency spectrum.

None of the above.

Solution:

The internal resistance of a cell

Always acts in the cell in open circuit

Acts only in closed circuit and it reduces the EMF

Acts only in closed circuit and it reduces the current

None of these

Solution:

A positive charge enters a magnetic field and travels parallel to but opposite the direction of the magnetic field. The charge feels or experiences:

An upward force

A downward force

An accelerative force

No force

Solution:

A charged particle of mass m and charge q moves along a circular path of radius r that is perpendicular to a magnetic field B. The time taken by the particle to complete one revolution is

2×π×mq/B

2×π×q²B/m

2×π×qB/m

2×π×m/qB

Solution:

Consider the following case and choose the option that accurately describes the relationship between the electric fields at the interface between two dielectrics with non-zero surface charge density, ρ_s C/m².

1/ρ_s

ρ_s

(ρ_s)²

1/(ρ_s)²

Electromagnetic-theory Questions Set 1:

Which of the following is called non-reciprocal devices

Solution:

Each kilometer of travel in electromagnetic radiation means a time delay of

Solution:

A wave has a resistance of 16.4 Ω in a 52 Ω line. Find the attenuation coefficient of the wave.

Solution:

The time period of a charged particle undergoing circular motion in a uniform magnetic field is independent of its

Solution:

The characteristic impedance Z_o of a transmission line is given by the formula:

Solution:

What are the key advantages of using microwaves?

Solution:

The internal resistance of a cell

Solution:

A positive charge enters a magnetic field and travels parallel to but opposite the direction of the magnetic field. The charge feels or experiences:

Solution:

A charged particle of mass m and charge q moves along a circular path of radius r that is perpendicular to a magnetic field B. The time taken by the particle to complete one revolution is

Solution:

Consider the following case and choose the option that accurately describes the relationship between the electric fields at the interface between two dielectrics with non-zero surface charge density, ρ_s C/m².

Solution:

Related Question Sets:

Related Topics:

Electromagnetic-theory Questions Set 1:

Which of the following is called non-reciprocal devices

Solution:

Each kilometer of travel in electromagnetic radiation means a time delay of

Solution:

A wave has a resistance of 16.4 Ω in a 52 Ω line. Find the attenuation coefficient of the wave.

Solution:

The time period of a charged particle undergoing circular motion in a uniform magnetic field is independent of its

Solution:

The characteristic impedance Zo of a transmission line is given by the formula:

Solution:

What are the key advantages of using microwaves?

Solution:

The internal resistance of a cell

Solution:

A positive charge enters a magnetic field and travels parallel to but opposite the direction of the magnetic field. The charge feels or experiences:

Solution:

A charged particle of mass m and charge q moves along a circular path of radius r that is perpendicular to a magnetic field B. The time taken by the particle to complete one revolution is

Solution:

Consider the following case and choose the option that accurately describes the relationship between the electric fields at the interface between two dielectrics with non-zero surface charge density, ρs C/m2.

Solution:

Related Question Sets:

Related Topics:

The characteristic impedance Z_o of a transmission line is given by the formula:

Consider the following case and choose the option that accurately describes the relationship between the electric fields at the interface between two dielectrics with non-zero surface charge density, ρ_s C/m².