Question 1

If a resistor is color coded with red, red, orange and silver bands, the resistance equals ________, the lower tolerance limit equals ________, and the upper tolerance limit equals ________.

Accepted Answer

B

Question 2

The opposition to the flow of current is called ________.

Accepted Answer

Resistance is the property of a material that opposes the flow of electric current.

Question 3

The movement of free electrons through a conductor is called current.

Accepted Answer

This statement is true according to the definition of electric current in physics.

Question 4

Electrons attract each other.

Accepted Answer

Electrons repel each other due to their like negative charges according to Coulomb's law.

Question 5

A generator converts electrical energy into mechanical energy.

Accepted Answer

A generator converts mechanical energy into electrical energy.

Question 6

An insulator is a material with ________.

Accepted Answer

An insulator is a material that has very few free electrons, which makes it difficult for electric current to flow through it.

Question 7

A resistor color-coded with brown, black and orange bands has a value of

Accepted Answer

The answer of A resistor color-coded with brown, black and...

Question 8

A resistor color coded with yellow, violet and orange bands has a value of

Accepted Answer

The answer of A resistor color coded with yellow, violet...

Question 9

For electrical current to flow in a circuit voltage must be applied to that circuit.

Accepted Answer

This is a fundamental principle of electricity. Without a voltage source, such as a battery or power supply, there is no potential difference to push electrons through the circuit and create a current flow.

Question 10

Electrons have a positive charge.

Accepted Answer

Electrons have negative charge.

Question 11

The Nickel-Metal Hydride battery is an example of a secondary battery.

Accepted Answer

A Nickel-Metal Hydride battery is a rechargeable battery or a secondary battery.

Question 12

A Normally Open Push Button switch can carry current when not pushed.

Accepted Answer

A Normally Open Push Button switch does not carry current when not pushed because the circuit is open, preventing current flow.

Question 13

A resistor with orange, orange, red and gold bands has a value and tolerance of ________.

Accepted Answer

The answer of A resistor with orange, orange, red and...

Question 14

A SPST switch is used to control one circuit.

Accepted Answer

SPST stands for Single Pole Single Throw, which means it has one pole (connection terminal) and one throw (position that the switch can be in). It can control one circuit by either connecting or disconnecting the circuit based on its position.

Question 15

Resistance is the opposition to the flow of current.

Accepted Answer

Resistance is defined as the opposition to the flow of current.

Question 16

Electromotive force is measured in volts.

Accepted Answer

Electromotive force, commonly referred to as EMF, is measured in units of volts.

Question 17

The ohm is the basic unit of resistance.

Accepted Answer

The ohm is indeed the basic unit of resistance.

Question 18

An element with a relatively large amount of electrons in the valence ring is considered to be a 
good conductor.

Accepted Answer

Elements with a large number of electrons in their valence shell tend to hold onto their electrons more tightly, making them poor conductors. Good conductors typically have one or two electrons in their valence shell, which they can easily lose to conduct electricity.

Question 19

To measure the current through a resistor, place the ammeter so the current must pass through the 5)
meter.

Accepted Answer

An ammeter must be connected in series with the resistor so that the current flowing through the resistor also flows through the ammeter for accurate measurement.

Question 20

A(n) ________ is a material that has many free electrons.

Accepted Answer

A material that has many free electrons is a good conductor of electricity. Thus, the correct choice is D, conductor.

Quiz 2: Voltage, Current, and Resistance

If a resistor is color coded with red, red, orange and silver bands, the resistance equals , the lower tolerance limit equals , and the upper tolerance limit equals .