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Electromagnetic-theory Questions Set 29:

Quiz Mode

A 1250 W heater operates at 115 V. What is the resistance of the heating coil?

1.6 Ω

13.5 Ω

1250 Ω

10.6 Ω

Solution:

Which phenomenon is not common to both sound and light waves?

Interference

Diffraction

Coherence

Polarization

Solution:

Which of the following transmission lines is non-radiating?

Open two-wire line

Coaxial line

Both open two-wire and coaxial lines

Optical fiber

Solution:

Find the value of the constant P in the given vector field B' = 2yx_a - Pxy²_a which represents a magnetic field at the point (1, 2, 3).

Solution:

Which type of DC motor has the poorest speed regulation?

(a) Shunt motor

(b) Series motor

(d) Cumulative compound motor

Solution:

A transmission line has open circuit impedance of 75ohm and short circuit impedance 60ohm then find characteristic impedance of transmission line?

4.5Kohm

67.08ohm

72.45ohm

98.34ohm

Solution:

Which of the following is not a property of electric flux lines?

They originate from positive charge and terminate at negative charge

Normally they enter or leave a charged surface

They are perpendicular to each other

None of the above

Solution:

Copper behaves like a

Conductor

Conductor or dielectric depending on the applied electric field

Conductor or dielectric depending on the applied electric frequency

Conductor or dielectric depending on the applied electric current density

Solution:

If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor

(a) of lower H.P. should be selected

(b) of higher H.P. should be selected

(d) is to be derated by a factor recommended by manufacturer and select the next higher H.P. motor

Solution:

Which of the following statements correctly describes the boundary conditions at a media interface?

The relationship found between fields belonging to two different media after applying the differential form of Maxwell's equations at the media interfaces.

The relationship found between fields belonging to the same media after applying the differential form of Maxwell's equations at the media interfaces.

The relationship found between fields belonging to two different media after applying the integral form of Maxwell's equations at the media interfaces.

The relationship found between fields belonging to the same media after applying the integral form of Maxwell's equations at the media interfaces.

Electromagnetic-theory Questions Set 29:

A 1250 W heater operates at 115 V. What is the resistance of the heating coil?

Solution:

Which phenomenon is not common to both sound and light waves?

Solution:

Which of the following transmission lines is non-radiating?

Solution:

Find the value of the constant P in the given vector field B' = 2yx_a - Pxy²_a which represents a magnetic field at the point (1, 2, 3).

Solution:

Which type of DC motor has the poorest speed regulation?

Solution:

A transmission line has open circuit impedance of 75ohm and short circuit impedance 60ohm then find characteristic impedance of transmission line?

Solution:

Which of the following is not a property of electric flux lines?

Solution:

Copper behaves like a

Solution:

If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor

Solution:

Which of the following statements correctly describes the boundary conditions at a media interface?

Solution:

Related Question Sets:

Related Topics:

Electromagnetic-theory Questions Set 29:

A 1250 W heater operates at 115 V. What is the resistance of the heating coil?

Solution:

Which phenomenon is not common to both sound and light waves?

Solution:

Which of the following transmission lines is non-radiating?

Solution:

Find the value of the constant P in the given vector field B' = 2yxa - Pxy2a which represents a magnetic field at the point (1, 2, 3).

Solution:

Which type of DC motor has the poorest speed regulation?

Solution:

A transmission line has open circuit impedance of 75ohm and short circuit impedance 60ohm then find characteristic impedance of transmission line?

Solution:

Which of the following is not a property of electric flux lines?

Solution:

Copper behaves like a

Solution:

If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor

Solution:

Which of the following statements correctly describes the boundary conditions at a media interface?

Solution:

Related Question Sets:

Related Topics:

Find the value of the constant P in the given vector field B' = 2yx_a - Pxy²_a which represents a magnetic field at the point (1, 2, 3).