current Quiz Practice Quiz | current

Q: What is the unit of electric current?

Ampere (A) — Current is measured in Amperes, named after André-Marie Ampère.

Q: Electric current is the flow of what?

Electrons — Electric current is the movement of electrons through a conductor.

Q: Which of the following is a symbol commonly used to represent electric current?

I — The letter 'I' is often used to symbolize current, derived from the French word 'Intensité'.

Q: In a series circuit, the current is:

The same through all components — Current remains constant throughout a series circuit.

Q: What happens to the current if the voltage in a circuit is increased (assuming resistance remains constant)?

Increases — According to Ohm's Law, current is directly proportional to voltage (I = V/R).

Q: If a current of 2 amps flows through a resistor, and the voltage across it is 10 volts, what is the resistance (in ohms)?

5 — Using Ohm's Law (R = V/I), resistance is 10V / 2A = 5 ohms.

Q: What is the definition of current?

The rate of flow of electric charge. — Current is the rate at which electric charge moves past a point.

Q: Which of these devices measures current?

Ammeter — An Ammeter is specifically designed to measure current.

Q: The direction of conventional current flow is considered to be from:

Positive to negative — Conventional current flow assumes positive charges move from positive to negative terminals.

Q: How many milliamperes (mA) are in one ampere (A)?

1000 — 1 Ampere = 1000 milliamperes.

Question 1 of 10

What is the unit of electric current?

Current is measured in Amperes, named after André-Marie Ampère.

Question 2 of 10

Electric current is the flow of what?

Electric current is the movement of electrons through a conductor.

Question 3 of 10

Which of the following is a symbol commonly used to represent electric current?

The letter 'I' is often used to symbolize current, derived from the French word 'Intensité'.

Question 4 of 10

In a series circuit, the current is:

Current remains constant throughout a series circuit.

Question 5 of 10

What happens to the current if the voltage in a circuit is increased (assuming resistance remains constant)?

According to Ohm's Law, current is directly proportional to voltage (I = V/R).

Question 6 of 10

If a current of 2 amps flows through a resistor, and the voltage across it is 10 volts, what is the resistance (in ohms)?

Using Ohm's Law (R = V/I), resistance is 10V / 2A = 5 ohms.

Question 7 of 10

What is the definition of current?

Current is the rate at which electric charge moves past a point.

Question 8 of 10

Which of these devices measures current?

An Ammeter is specifically designed to measure current.

Question 9 of 10

The direction of conventional current flow is considered to be from:

Conventional current flow assumes positive charges move from positive to negative terminals.

Question 10 of 10

How many milliamperes (mA) are in one ampere (A)?

1 Ampere = 1000 milliamperes.

current Quiz