AET610 -Basics of DC Circuits -Resistors -Quiz 1

What is the purpose of a resistor in an electric circuit?

• To increase the voltage

• To store electrical energy

• To convert electrical energy to mechanical energy

• To control the flow of current

Which of the following units is used to measure resistance?

• Volts

• Ohms

• Ampere

• Watts

What does DC stand for in DC networks?

• Direct Current

• Dual Current

• Dynamic Current

• Digital Current

Which of the following is a characteristic of a DC circuit?

• Changing polarity

• Oscillating voltage

• Alternating current

• Constant voltage

In a series DC circuit, the total resistance is equal to:

• The sum of individual resistances

• The average of individual resistances

• The difference of individual resistances

• The reciprocal of individual resistances

Which component stores electrical energy in a DC circuit?

• Resistor

• Capacitor

• Inductor

• Diode

The unit of electric current is:

• Volts

• Watts

• Amperes

• Ohms

Which of the following statements about resistors in a DC circuit is true?

• They increase current flow

• They store electrical energy

• They decrease voltage

• They oppose the flow of current

Which of the following materials is a good conductor of electricity?

• Rubber

• Wood

• Glass

• Copper

What does a switch do in a DC circuit?

• Converts DC to AC

• Controls the flow of current

• Stores electrical energy

• Increases resistance