DC Theory Parallel Circuits Quiz

What is Ohm's Law?

• Ohm's Law is a mathematical equation used to calculate the power in an electrical circuit.

• Ohm's Law states that the resistance in a circuit is directly proportional to the voltage.

• Ohm's Law relates current, voltage, and resistance in an electrical circuit.

• Ohm's Law only applies to DC circuits and not AC circuits.

Which formula represents Ohm's Law?

• V = I^2 * R

• V = I * R

• V = I + R

• V = I / R

What is the formula for calculating current in a parallel circuit?

• I = I1 - I2 - I3 - ... - In

• I = I1 + I2 + I3 + ... + In

• I = I1 / I2 / I3 / ... / In

• I = I1 * I2 * I3 * ... * In

What is the Current Divider Rule used for?

• To determine the distribution of current in a parallel circuit.

• To determine the distribution of voltage in a parallel circuit.

• To measure the power dissipated in a circuit.

• To calculate the total resistance in a series circuit.

What is the formula for calculating power in a parallel circuit?

• P = V/R

• P = I^2/R

• P = VI

• P = V^2/R

What is the unit of power?

• ohm

• watt

• volt

• ampere

What is the formula for calculating equivalent resistance in a parallel circuit?

• Req = R1 + R2 + R3 + ... + Rn

• Req = R1 - R2 - R3 - ... - Rn

• Req = R1 * R2 * R3 * ... * Rn

• 1/Req = 1/R1 + 1/R2 + 1/R3 + ... + 1/Rn

What happens to the total resistance in a parallel circuit as more resistors are added?

• The total resistance stays the same.

• The total resistance decreases.

• The total resistance increases.

• The total resistance becomes infinite.

What is the formula for calculating total current in a parallel circuit?

• Total current in a parallel circuit is calculated by summing the individual currents in each branch.

• Total current in a parallel circuit is calculated by subtracting the individual currents in each branch.

• Total current in a parallel circuit is calculated by dividing the voltage across the circuit by the total resistance.

• Total current in a parallel circuit is calculated by multiplying the individual currents in each branch.

What is the formula for calculating total power in a parallel circuit?

• P_total = P_1 + P_2 + P_3 + ... + P_n

• P_total = P_1 - P_2 - P_3 - ... - P_n

• P_total = P_1 / P_2 / P_3 / ... / P_n

• P_total = P_1 * P_2 * P_3 * ... * P_n