Electrical Circuit Fundamentals Quiz

What does Ohm's Law state?

• Voltage is directly proportional to current

• Voltage is inversely proportional to current

• Current is independent of voltage

• Resistance is constant regardless of voltage

What is a node in a circuit?

• The total current in the circuit

• A point of connection between branches

• A closed path in a circuit

• A single element like a resistor

What does Kirchhoff's Current Law (KCL) state?

• The total current is equal to the voltage divided by resistance

• The total resistance in series is the sum of resistances

• The sum of currents entering a node is zero

• The sum of voltages in a loop is zero

What is the equivalent resistance of resistors in series?

• The sum of the individual resistances

• The product of the resistances

• The maximum resistance

• The average of the resistances

What is the formula for the equivalent resistance of resistors in parallel?

• R_eq = R1 + R2 + ... + Rn

• R_eq = R1 * R2 / (R1 + R2)

• 1/R_eq = 1/R1 + 1/R2 + ... + 1/Rn

• R_eq = R1 - R2

What does the voltage divider rule apply to?

• Inductors in parallel

• Resistors in series

• Resistors in parallel

• Capacitors in series

What is the reciprocal of resistance called?

• Conductance

• Power

• Capacitance

• Voltage

What does Kirchhoff's Voltage Law (KVL) state?

• The sum of currents entering a node is zero

• The voltage across a resistor is constant

• The sum of voltages around a closed loop is zero

• The total power in a circuit is constant

What is the purpose of Wye-Delta transformations?

• To determine current in a circuit

• To calculate power in resistors

• To simplify series circuits

• To analyze circuits with resistors neither in series nor parallel

In a parallel circuit, how is the total current divided?

• Equally among all resistors

• In inverse proportion to their resistances

• In direct proportion to their resistances

• Based on the voltage across each resistor