Electrical Circuits Quiz

What is the key characteristic of components in a series circuit?

• The total resistance is inversely proportional to individual resistances

• The current is the same through all components

• The voltage is the same across all components

• The total current is the sum of the currents through each component

What is the equation for total resistance in a series circuit?

• R_total = R1 * R2 * R3 * ...

• R_total = R1 + R2 + R3 + ...

• R_total = R1 / R2 / R3 / ...

• R_total = R1 - R2 - R3 - ...

In a parallel circuit, what is the key characteristic of the voltage across components?

• The voltage is inversely proportional to the resistance

• The voltage is the same across all components

• The voltage is directly proportional to the current

• The voltage is divided among the components

What is the equation for total resistance in a parallel circuit?

• 1/R_total = 1/R1 * 1/R2 * 1/R3 * ...

• R_total = R1 + R2 + R3 + ...

• R_total = R1 * R2 * R3 * ...

• 1/R_total = 1/R1 + 1/R2 + 1/R3 + ...

What does Kirchhoff's Current Law state?

• The voltage is divided among the components

• The sum of the voltages around any closed loop in a circuit equals zero

• The total current entering a junction in a circuit equals the total current leaving the junction

• The total resistance is the sum of individual resistances

What does Ohm's Law relate?

• Voltage and current

• Voltage, current, and resistance

• Voltage and resistance

• Current and resistance

What is the formula for current density?

• J = A / I

• J = I + A

• J = I * A

• J = I / A

What is drift velocity in an electrical circuit?

• The maximum velocity of charged particles

• The velocity of light in a circuit

• The average velocity of charged particles due to an electric field

• The velocity of sound in a circuit

What is the unit of resistance?

• Volt

• Ohm

• Watt

• Ampere

What is the reciprocal of resistivity?

• Conductivity

• Power

• Voltage

• Current