Which one of the following statements is true for the currents in a parallel RC circuit?

Which one of the following statements is true for the currents in a parallel RL circuit?

A

The total current is equal to the sum of the currents through the resistance and inductance

B

The current always has the same amplitude and phase for every part of the circuit

C

The total current is less than the sum of the currents through the resistance and inductance

D

The total current leads the total voltage by less than 90

E

None of the above

The sum of the currents into a junction is equal to the sum of the currents out of that junction.

A

True

B

False

Which one of the following statements is true for the currents in a series RC circuit?

A

The current always has the same amplitude and phase for every part of the circuit

B

The total current is equal to the sum of the currents for the resistance and capacitance

C

The total current is greater than the sum of the currents for the resistance and capacitance

D

The total current is less than the sum of the currents for the resistance and capacitance

E

None of the above

If two currents are in the same direction at any instant of time in a given branch of a circuit, the net current at that instant

A

Is zero

B

Is the sum of the two currents

C

Is the difference between the two currents

D

Cannot be determined

Short-circuit currents are due to

A

single phase to ground faults

B

phase to phase faults

C

two phase to ground faults

D

three phase faults

E

any of these

To reduce short circuit fault currents are used.

A

reactors

B

resistors

C

capacitors

D

none of the above

If the resistance in parallel with a parallel resonant circuit is reduced, the bandwidth

A

Disappears

B

Becomes sharper

C

Increases

D

Decreases

Which one of the following statements is true for current flowing in a parallel circuit?

A

The amount of current flow through each branch of a parallel circuit can be different, depending on the resistance of each branch part and the amount of voltage applied to it

B

The same current always flows through every part of a parallel circuit

C

The total current in a parallel circuit is equal to the total voltage multiplied by the total resistance

D

The total current in a parallel circuit is always less than the smallest amount of current

E

None of the above

Which one of the following statements is true for the voltage in a parallel RC circuit?

A

The voltage always has the same amplitude and phase for every part of the circuit

B

The total voltage is equal to the sum of the voltages across the resistance and capacitance

C

The total voltage leads the total current by less than 90 degree

D

The total voltage is less than the sum of the voltages across the resistance and capacitance

E

None of the above

Which one of the following statements is true for resistance in a parallel circuit?

A

The total resistance is equal to the sum of the individual resistances in a parallel circuit.

B

The total resistance of a parallel circuit is always less than the value of the smallest resistance

C

The total resistance of a parallel circuit is equal to the total voltage

D

The total resistance in a parallel circuit is equal to the average value of the individual resistances

E

None of the above

Which one of the following statements is true for the currents in a parallel RC circuit?

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