CHAPTER 1 INTRODUCTION TO ELECTRICITY

What is electricity?

• Flow of neutrons from atom to atom

• Flow of electrons from atom to atom

• Flow of photons from atom to atom

• Flow of protons from atom to atom

Answer explanation

Electricity is the flow of electrons from atom to atom.

Who started working with electricity in the 1740s?

• Alexander Graham Bell

• Thomas Edison

• Benjamin Franklin

• Nikola Tesla

Answer explanation

Benjamin Franklin started working with electricity in the 1740s, conducting his famous kite experiment to prove the connection between lightning and electricity.

What is the basic building block of any material in the universe?

• Atom

• Cell

• Particle

• Molecule

Answer explanation

The basic building block of any material in the universe is an atom, making it the correct choice among the options provided.

What is the unit for measuring voltage and electromotive force?

• Watt

• Volt

• Ohm

• Ampere

Answer explanation

The unit for measuring voltage and electromotive force is Volt. Therefore, the correct unit is Volt.

What is the measure of the amount of charge flowing through a circuit per unit time?

• Voltage

• Resistance

• Current

• Capacitance

Answer explanation

The measure of the amount of charge flowing through a circuit per unit time is known as Current.

What is the unit for measuring current?

• Volt

• Ohm

• Ampere

• Watt

Answer explanation

The unit for measuring current is Ampere. It is denoted by the symbol 'A' and is used to quantify the rate of flow of electric charge in a circuit.

What is the unit for measuring resistance?

• Ampere

• Ohm

• Volt

• Watt

Answer explanation

The unit for measuring resistance is Ohm. Ohm is the standard unit of electrical resistance in the International System of Units (SI).

Which material allows electron flows?

• Insulator

• Battery

• Conductor

• Magnet

Answer explanation

Conductor allows electron flows, making it the correct choice among the given options.

What is the rate of energy consumed in a circuit called?

• Resistance

• Voltage

• Current

• Power

Answer explanation

The rate of energy consumed in a circuit is called Power, which is the correct choice among the options provided.

What is the ability of a component to store electrical charge?

• Power

• Capacitance

• Inductance

• Frequency

Answer explanation

The ability of a component to store electrical charge is known as Capacitance, making it the correct choice among the options provided.