ELECTRICITY GRADE 11 Quiz

What is the formula for Ohm's Law?

• V = I - R

• V = I + R

• V = I / R

• V = I * R

In an electric circuit, what is the unit of electrical resistance?

• watt

• volt

• ampere

• ohm

What is the total resistance in a series circuit with resistors of 4 ohms, 6 ohms, and 8 ohms?

• 10 ohms

• 20 ohms

• 18 ohms

• 12 ohms

What is the formula for calculating electric power?

• P = V - I

• P = V * I

• P = V / I

• P = V + I

In a parallel circuit, what happens to the total resistance as more resistors are added?

• stays the same

• increases

• becomes negative

• decreases

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

• Rt = R1 - R2 - R3 - ...

• 1/Rt = 1/R1 + 1/R2 + 1/R3 + ...

• Rt = R1 + R2 + R3 + ...

• Rt = R1 * R2 * R3 * ...

What is the potential difference across a resistor with a current of 2A and resistance of 5 ohms?

• 10V

• 5V

• 15V

• 3V

In a series circuit, how does the current compare at different points in the circuit?

• The current decreases at different points

• The current remains the same

• The current stops at different points

• The current increases at different points

What is the formula for calculating 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 * ...

What is the formula for calculating current in a circuit?

• I = V+R

• I = V/R

• I = V*R

• I = R/V