Chapter 2 Quiz

Which of the following correctly describes Ohm's Law?

• A. V = I × R

• B. V = I / R

• C. R = I / V

• D. P = I × V

What is the unit of resistance?

• A. Watt

• B. Ampere

• C. Ohm

• D. Volt

In a circuit, what is a node?

• A. A closed loop in a circuit

• B. A single resistor

• C. A point where two or more elements connect

• D. A branch with no current

Kirchhoff's Current Law (KCL) states that:

• A. The total voltage around a closed loop is zero

• B. The algebraic sum of currents entering a node is zero

• C. The total resistance in a circuit is always constant

• D. The sum of voltages across all elements in series is zero

Which of the following best describes Kirchhoff's Voltage Law (KVL)?

• A. The total resistance in a series circuit is equal to the sum of individual resistances

• B. The total voltage around any closed loop must be zero

• C. The total current entering a node is the same as the current leaving it

• D. Voltage is inversely proportional to current

In a series circuit, how is the total resistance calculated?

• A. As the sum of the reciprocals of individual resistances

• B. As the product of individual resistances

• C. By dividing the total voltage by the total current

• D. As the sum of individual resistances

How does current divide in a parallel circuit?

• A. Inversely proportional to resistance

• B. Directly proportional to resistance

• C. Equally among all branches

• D. Proportional to voltage across the circuit

What happens to the total resistance when resistors are connected in parallel?

• A. It increases

• B. It decreases

• C. It remains constant

• D. It depends on the number of resistors

Which of the following correctly represents Kirchhoff's Voltage Law (KVL)?

• A. ∑V = 0

• B. ∑I = 0

• C. V = IR

• D. ∑P = 0

If two resistors, 6 Ω and 3 Ω, are connected in series, what is the total resistance?

• A. 18 Ω

• B. 9 Ω

• C. 6 Ω

• D. 3 Ω