circuits Quiz Practice Quiz | Circuits

Q: What is the basic unit of electric charge?

Coulomb (C) — Coulomb is the SI unit for electric charge.

Q: Which of the following describes the relationship between voltage (V), current (I), and resistance (R) in a circuit?

Ohm's Law (V = IR) — Ohm's Law states that voltage is equal to current multiplied by resistance.

Q: What is the unit of measurement for electrical resistance?

Ohm (?) — Resistance is measured in Ohms.

Q: In a series circuit, what is constant across all components?

Current — The current remains the same throughout a series circuit.

Q: In a parallel circuit, what is constant across all components?

Voltage — The voltage is the same across all components in a parallel circuit.

Q: What is the equivalent resistance of two 10-ohm resistors connected in series?

20 ohms — In series, resistances add up: 10 + 10 = 20 ohms.

Q: What is the equivalent resistance of two 10-ohm resistors connected in parallel?

5 ohms — For parallel resistors: 1/R_eq = 1/10 + 1/10 => R_eq = 5 ohms.

Q: Which of the following is a passive circuit element?

Resistor — Resistors consume power, and are passive elements.

Q: What is the unit of measurement for electric power?

Watt (W) — Power is measured in Watts.

Q: Which law states that the sum of currents entering a node equals the sum of currents leaving that node?

Kirchhoff's Current Law (KCL) — KCL is the principle of conservation of charge at a node.

Question 1 of 10

What is the basic unit of electric charge?

Coulomb is the SI unit for electric charge.

Question 2 of 10

Which of the following describes the relationship between voltage (V), current (I), and resistance (R) in a circuit?

Ohm's Law states that voltage is equal to current multiplied by resistance.

Question 3 of 10

What is the unit of measurement for electrical resistance?

Resistance is measured in Ohms.

Question 4 of 10

In a series circuit, what is constant across all components?

The current remains the same throughout a series circuit.

Question 5 of 10

In a parallel circuit, what is constant across all components?

The voltage is the same across all components in a parallel circuit.

Question 6 of 10

What is the equivalent resistance of two 10-ohm resistors connected in series?

In series, resistances add up: 10 + 10 = 20 ohms.

Question 7 of 10

What is the equivalent resistance of two 10-ohm resistors connected in parallel?

For parallel resistors: 1/R_eq = 1/10 + 1/10 => R_eq = 5 ohms.

Question 8 of 10

Which of the following is a passive circuit element?

Resistors consume power, and are passive elements.

Question 9 of 10

What is the unit of measurement for electric power?

Power is measured in Watts.

Question 10 of 10

Which law states that the sum of currents entering a node equals the sum of currents leaving that node?

KCL is the principle of conservation of charge at a node.

circuits Quiz