Ohm's Law and Basic Circuit Calculations Quiz…

Q: What is the unit of measurement for electric current?

Ampere (A) — Current is measured in Amperes, often abbreviated as Amps.

Q: Which of the following equations represents Ohm's Law?

V = IR — Ohm's Law states Voltage (V) equals Current (I) times Resistance (R).

Q: If a circuit has a voltage of 12V and a resistance of 4?, what is the current flowing through it?

3 A — Using Ohm's Law (I=V/R), I = 12V/4? = 3A.

Q: What is the unit of measurement for electrical resistance?

Ohm (?) — Resistance is measured in Ohms, represented by the Greek letter Omega (?).

Q: If a 6V battery is connected to a 2? resistor, what is the power dissipated by the resistor?

18 W — Power (P) = V²/R = 6²/2 = 18W. Or P = VI and I=V/R.

Q: What is the unit of measurement for voltage?

Volt (V) — Voltage is measured in Volts (V).

Q: In a series circuit, what is the relationship between the current flowing through each component?

The current is the same for each component. — In a series circuit, current is constant throughout the circuit.

Q: If a resistor dissipates 5W of power and has a voltage drop of 10V, what is its resistance?

2 ? — Using P = V²/R, R = V²/P = 10²/5 = 20/5 = 2 ?.

Q: In a parallel circuit, what is the relationship between the voltage across each component?

The voltage is the same for each component. — In a parallel circuit, voltage is constant across each branch.

Q: Which of these is not a form of Ohm's Law?

P = IR — P=VI, not IR. Power is calculated using Voltage and Current (or other derivations).

Question 1 of 10

What is the unit of measurement for electric current?

Current is measured in Amperes, often abbreviated as Amps.

Question 2 of 10

Which of the following equations represents Ohm's Law?

Ohm's Law states Voltage (V) equals Current (I) times Resistance (R).

Question 3 of 10

If a circuit has a voltage of 12V and a resistance of 4?, what is the current flowing through it?

Using Ohm's Law (I=V/R), I = 12V/4? = 3A.

Question 4 of 10

What is the unit of measurement for electrical resistance?

Resistance is measured in Ohms, represented by the Greek letter Omega (?).

Question 5 of 10

If a 6V battery is connected to a 2? resistor, what is the power dissipated by the resistor?

Power (P) = V²/R = 6²/2 = 18W. Or P = VI and I=V/R.

Question 6 of 10

What is the unit of measurement for voltage?

Voltage is measured in Volts (V).

Question 7 of 10

In a series circuit, what is the relationship between the current flowing through each component?

In a series circuit, current is constant throughout the circuit.

Question 8 of 10

If a resistor dissipates 5W of power and has a voltage drop of 10V, what is its resistance?

Using P = V²/R, R = V²/P = 10²/5 = 20/5 = 2 ?.

Question 9 of 10

In a parallel circuit, what is the relationship between the voltage across each component?

In a parallel circuit, voltage is constant across each branch.

Question 10 of 10

Which of these is not a form of Ohm's Law?

P=VI, not IR. Power is calculated using Voltage and Current (or other derivations).

Ohm's Law and Basic Circuit Calculations Quiz