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Electromagnetic-theory Questions Set 63:

Quiz Mode

Which of the following is not a unit of magnetic flux?

Maxwell

Tesla

Weber

All of the above

Solution:

A wire of resistance R is stretched to twice its original length. Its new resistance will be:

R/3

R/2

Solution:

In which of the following applications is a D.C. series motor invariably used?

Starter for a car

Drive for a water pump

Fan motor

Motor operation in A.C. or D.C.

Solution:

Which of the following cannot be solved using Green's theorem?

Area surveying

Volume of plane figures

Centroid of plane figures

Solving two-dimensional flow integrals

Solution:

Which S-matrix properties are satisfied by a 3-port lossy power divider?

Lossless and matched

Matched and symmetric

Lossless and symmetric

Matched, lossless, and symmetric

Solution:

A point pole has a strength of 4π × 10^-4 weber. The force in newtons on a pointed pole of 4π × 1.5 × 10^-4 weber placed at a distance of 10 cm from it will be:

15 N

20 N

7.5 N

3.75 N

Solution:

Two waves are said to be coherent if they have:

Same phase and different amplitude

Different frequency, phase and amplitude

Same frequency but different amplitude

Same frequency, phase and amplitude

Solution:

The current in a simple series circuit is 5.0 A. When an additional resistance of 2.0 ohms is inserted, the current drops to 4.0 A. What was the original resistance of the circuit in ohms?

1.25

Solution:

The angle of dip at a location on Earth indicates

The horizontal component of the Earth's magnetic field

The direction of the Earth's magnetic field

The location of the geographic meridian

The vertical component of the Earth's magnetic field

Solution:

To protect a sensitive piece of equipment from an external magnetic field, the best approach is to:

Place it inside an iron can

Wrap it with insulated wire and pass current through it

Surround it with fine copper wire gauge

Place it inside an aluminum can

Electromagnetic-theory Questions Set 63:

Which of the following is not a unit of magnetic flux?

Solution:

A wire of resistance R is stretched to twice its original length. Its new resistance will be:

Solution:

In which of the following applications is a D.C. series motor invariably used?

Solution:

Which of the following cannot be solved using Green's theorem?

Solution:

Which S-matrix properties are satisfied by a 3-port lossy power divider?

Solution:

A point pole has a strength of 4π × 10^-4 weber. The force in newtons on a pointed pole of 4π × 1.5 × 10^-4 weber placed at a distance of 10 cm from it will be:

Solution:

Two waves are said to be coherent if they have:

Solution:

The current in a simple series circuit is 5.0 A. When an additional resistance of 2.0 ohms is inserted, the current drops to 4.0 A. What was the original resistance of the circuit in ohms?

Solution:

The angle of dip at a location on Earth indicates

Solution:

To protect a sensitive piece of equipment from an external magnetic field, the best approach is to:

Solution:

Related Question Sets:

Related Topics:

Electromagnetic-theory Questions Set 63:

Which of the following is not a unit of magnetic flux?

Solution:

A wire of resistance R is stretched to twice its original length. Its new resistance will be:

Solution:

In which of the following applications is a D.C. series motor invariably used?

Solution:

Which of the following cannot be solved using Green's theorem?

Solution:

Which S-matrix properties are satisfied by a 3-port lossy power divider?

Solution:

A point pole has a strength of 4π × 10-4 weber. The force in newtons on a pointed pole of 4π × 1.5 × 10-4 weber placed at a distance of 10 cm from it will be:

Solution:

Two waves are said to be coherent if they have:

Solution:

The current in a simple series circuit is 5.0 A. When an additional resistance of 2.0 ohms is inserted, the current drops to 4.0 A. What was the original resistance of the circuit in ohms?

Solution:

The angle of dip at a location on Earth indicates

Solution:

To protect a sensitive piece of equipment from an external magnetic field, the best approach is to:

Solution:

Related Question Sets:

Related Topics:

A point pole has a strength of 4π × 10^-4 weber. The force in newtons on a pointed pole of 4π × 1.5 × 10^-4 weber placed at a distance of 10 cm from it will be: