electrical nomenclature and static ,theories of…

Q: Which of the following is the SI unit for electric charge?

Coulomb (C) — Coulomb (C) is the fundamental unit for measuring the quantity of electric charge.

Q: What is the term for the opposition to current flow in an electrical circuit?

Resistance — Resistance hinders the flow of electrons, measured in Ohms.

Q: According to the conventional current flow, current flows from:

Positive to negative — Conventional current flow is defined as the flow of positive charge from positive to negative terminal.

Q: What is the definition of 'electromotive force' (EMF)?

The force that drives electrons — EMF is the driving force that pushes electrons around a circuit, measured in Volts.

Q: Which of the following describes static electricity?

The imbalance of electric charges on a surface — Static electricity involves an accumulation of charge, typically resulting from friction or induction.

Q: What is the name for the subatomic particle with a negative charge?

Electron — Electrons are negatively charged particles that orbit the nucleus.

Q: What is the SI unit for measuring electrical power?

Watt (W) — Electrical power is the rate at which electrical energy is transferred, measured in Watts.

Q: Which of the following is NOT a good conductor of electricity?

Rubber — Rubber is an insulator, meaning it resists the flow of electric current.

Q: What happens when two objects with the same static charge are brought near each other?

They repel — Like charges repel each other, due to the electrostatic force.

Q: Which law describes the relationship between voltage, current, and resistance?

Ohm's Law — Ohm's Law states that Voltage = Current x Resistance (V = IR).

Question 1 of 15

Which of the following is the SI unit for electric charge?

Coulomb (C) is the fundamental unit for measuring the quantity of electric charge.

Question 2 of 15

What is the term for the opposition to current flow in an electrical circuit?

Resistance hinders the flow of electrons, measured in Ohms.

Question 3 of 15

According to the conventional current flow, current flows from:

Conventional current flow is defined as the flow of positive charge from positive to negative terminal.

Question 4 of 15

What is the definition of 'electromotive force' (EMF)?

EMF is the driving force that pushes electrons around a circuit, measured in Volts.

Question 5 of 15

Which of the following describes static electricity?

Static electricity involves an accumulation of charge, typically resulting from friction or induction.

Question 6 of 15

What is the name for the subatomic particle with a negative charge?

Electrons are negatively charged particles that orbit the nucleus.

Question 7 of 15

What is the SI unit for measuring electrical power?

Electrical power is the rate at which electrical energy is transferred, measured in Watts.

Question 8 of 15

Which of the following is NOT a good conductor of electricity?

Rubber is an insulator, meaning it resists the flow of electric current.

Question 9 of 15

What happens when two objects with the same static charge are brought near each other?

Like charges repel each other, due to the electrostatic force.

Question 10 of 15

Which law describes the relationship between voltage, current, and resistance?

Ohm's Law states that Voltage = Current x Resistance (V = IR).

Question 11 of 15

What is the term for the ability of a material to store electrical energy?

Capacitance is the ability of a component to store electrical energy in an electric field.

Question 12 of 15

What is the difference between electron flow and conventional current flow?

Electron flow considers the actual movement of electrons, and conventional current flow assumes positive charges moving in the opposite direction.

Question 13 of 15

What is the unit of measure for electrical potential difference?

Electrical potential difference (or voltage) is measured in Volts.

Question 14 of 15

Which component opposes the flow of current in a circuit?

A resistor's primary function is to limit current flow.

Question 15 of 15

What is the term used for the buildup of electrons on a surface due to friction?

The triboelectric effect describes charge transfer due to contact and friction between materials.

electrical nomenclature and static ,theories of electron flow Quiz