Quiz sheet for series circuits

The total equivalent resistance in a series circuit is:

A) less than the highest individual resistance

B) the supply voltage multiplied by the current

C) the sum of the individual resistances

D) the sum of the reciprocals of the individual resistances

ANSWER: C

A series circuit has

A) one component

B) one current path

C) multiple current paths

D) the same voltage across all components

ANSWER: B

The voltage measured across a closed switch will equal

A) zero volts

B) approximately twelve volts

C) half the supply voltage

D) the total supply voltage

ANSWER: A

Two resistors A and B are connected in series across a 12 volt supply. If resistor B has three times the resistance of A, the voltage drop across resistor B is:

A) 12 volts

B) 3 volts

C) 9 volts

D) 8 volts

ANSWER: C

Current in a series circuit is:

A) different through each component.

B) is proportional to the resistance.

C) is inversely proportional to the voltage

D) the same through each component.

ANSWER: D

If a resistor in a series circuit developed a short circuit across itself, the circuit current would:

A) increase

B) decrease

C) remain the same.

D) drop to zero.

ANSWER: A

Kirchhoff’s voltage law states that in any closed loop the:

A) algebraic sum of all the voltages drops is equal to zero.

B) algebraic sum of all the voltages drops is equal to the applied voltage.

C) algebraic sum of all the voltages drops is equal to the applied voltage minus the biggest drop

D) algebraic sum of all the voltages drops is equal to the applied voltage minus the smallest drop.

ANSWER: B

The equivalent resistance in a series circuit is:

A) less than the highest individual resistance

B) the supply voltage multiplied by the current

C) the sum of the reciprocals of the individual resistances

D) the sum of the individual resistances

ANSWER: D

Two resistors are connected in series across a 100 volt supply. If the first has three times the resistance of the second, the voltage drop across the second resistor is:

A) 66.6 volts

B) 75 volts

C) 25 volts

D) 33.3 volts

ANSWER: C

Last modified: Tuesday, 1 June 2021, 10:45 AM