What is Ohm's Law?

• V = R / I

• V = I + R

• V = I * R

• V = I / R

Calculate the current flowing through a resistor of 10 ohms with a voltage of 5 volts applied.

• 0.5 amps

• 1 amp

• 2 amps

• 0.2 amps

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

• R_total = R1 * R2 * R3 * ... * Rn

• R_total = R1 - R2 - R3 - ... - Rn

• R_total = R1 + R2 + R3 + ... + Rn

• R_total = 1/(1/R1 + 1/R2 + 1/R3 + ... + 1/Rn)

If two resistors of 4 ohms and 6 ohms are in series, what is the total resistance?

• 10 ohms

• 2 ohms

• 8 ohms

• 12 ohms

Calculate the equivalent resistance between A and B.

• 60 ohm

• 15 ohm

• 12 ohm

• 48 ohm

What is the voltage across a 5-ohm resistor in a series circuit with a total voltage of 20 volts?

• 10 volts

• 20 volts

• 25 volts

• 15 volts

In a parallel circuit, how does the total current compare to individual currents?

• The total current is equal to the largest individual current.

• The total current is less than the smallest individual current.

• The total current is independent of the individual currents.

• The total current is equal to the sum of the individual currents.

1. The value of the 3 resistances when connected in star connection is____

• 2.32ohm, 1.22ohm, 4.54ohm

• 3.55ohm, 4.33ohm, 5.67ohm

• 2.78ohm, 1.67ohm, 0.83ohm

• 4.53ohm, 6.66ohm, 1.23ohm

If two resistors of 3 ohms and 6 ohms are in parallel, what is the total resistance?

• 1 ohm

• 2 ohms

• 4 ohms

• 3 ohms

Under the condition of maximum power efficiency is?

• 100%

• 30%

• 0%

• 50%