Circuit Theory Quiz

What is the unit of current?

• Watts

• Amperes

• Ohms

• Volts

What does Ohm's Law relate?

• Voltage, Current, and Capacitance

• Current, Power, and Resistance

• Voltage, Power, and Energy

• Voltage, Current, and Resistance

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

• R1 - R2 - R3

• R1 * R2 * R3

• 1/(1/R1 + 1/R2 + 1/R3)

• R1 + R2 + R3

What is the primary function of a resistor in a circuit?

• To increase voltage

• To oppose current flow

• To provide a path for current

• To store energy

What is the correct formula for Ohm's Law?

• I = V / R

• All of the above

• R = V / I

• V = I * R

What does Kirchhoff's Voltage Law state?

• Voltage is independent of current

• Total resistance is the sum of individual resistances

• Total voltage drops equal total applied voltage

• Total current in a circuit is constant

What is the direction of conventional current flow?

• From positive to negative

• It varies with the circuit

• From negative to positive

• In a random direction

What is the unit of voltage?

• Amperes

• Volts

• Ohms

• Coulombs

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

• 1/(1/I1 + 1/I2 + 1/I3)

• I1 - I2 - I3

• I1 * I2 * I3

• I1 + I2 + I3

What is the role of a battery in a circuit?

• To store energy

• To provide resistance

• To measure current

• To supply voltage