While comparing magnetic and electric circuits, the flux of magnetic circuit is compared with which parameter of electrical circuit?

Which one of the following properties of a magnetic circuit can be directly compared to current in an electrical circuit?

A

Number of lines of force

B

Flux density

C

Reluctance

D

Magnetomotive force

E

None of the above

Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit?

A

Reluctance

B

Permeability

C

Permeance

D

Retentivity

E

There is no valid comparison

Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit?

A

Flux density

B

Number of lines of force

C

Magnetomotive force

D

Reluctance

E

None of the above

A preliminary guide for comparing the simplicity of logic circuits is to count the number of input _____ leads.

A

wire

B

bus

C

gate

D

All of the above

E

None of the above

Why are digital circuits easier to design than analog circuits?

A

they do not control electricity precisely over a wide range

B

they are made in the form of ICs

C

all elements of digital circuit are from the same family

D

they are smaller in size

E

None of the above

Which of the following statement holds true for the divergence of electric and magnetic flux dendities?

A

Both are zero

B

These are zero for static flux dendities but non-zero for time -varying flux dendities

C

It is zero for electric flux densities

D

It is zero for magnetic flux densities

What table shows the electrical state of a digital circuit's output for every possible combination of electrical states in the inputs?

A

Function table

B

Truth table

C

Routing table

D

ASCII table

E

None of the above

Protective relays are devices that detect abnormal conditions in electrical circuits by measuring

A

current during abnormal condition

B

voltage during abnormal condition

C

constantly the electrical quantities which differ during normal and abnormal conditions

D

none of the above

While selecting an electric motor for a floor mill, which electrical characteristics will be of least significance?

A

Running characteristics

B

Starting characteristics

C

Efficiency

D

Braking

Permeability in a magnetic circuit corresponds to_________ in an electric circuit.

A

Resistance

B

Resistivity

C

Conductivity

D

Conductance

While comparing magnetic and electric circuits, the flux of magnetic circuit is compared with which parameter of electrical circuit?

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