Electricity 2020

When more devices are added to a series circuit, the total circuit resistance:

• decreases

• increases

• stays the same

• may increase or decrease, depending on the device

If there is a break at any point in a series circuit, the current will:

• stop everywhere in the circuit

• leak out of the break point

• be decreased by one-half

• continue through remaining unbroken circuit branches

The current in a series circuit:

• decreases to zero as it travels through the circuit.

• is the same at all points in a circuit.

• is greatest in the resistor with the highest resistance.

• is greatest in the resistor with the lowest resistance.

Which of the following is TRUE about voltage in a series circuit? The total voltage should

• equal the total current.

• adds up to zero.

• The voltage is divided up among resistors.

• Each resistor receives the full voltage of the battery.

What type of circuit is shown below?

• series

• parallel

• compound

• current

If each bulb below is 1 ohm of resistance, the total resistance shown is

• 1 ohm

• 1 volt

• 3 ohms

• 3 volts

Which of the circuit diagrams is a series circuit?

• I only

• II only

• III only

• I and II only

Which of the circuit diagrams is a parallel circuit?

• I only

• II only

• III only

• I and II only

Which of the following statements best describes the difference between series and parallel circuits?

• Series circuits are battery circuits, and parallel circuits are generator circuits.

• Series circuits have a single path, and parallel circuits have two or more paths.

• Series circuits are used in computers, and parallel circuits are used in homes.

• Series circuits have one switch in them, and parallel circuits have two switches in them.

What is the voltage across the 1 ohm resistor pictured below?

• 1/3 V

• 2/3 V

• 1 V

• 3 V