Electricity Basics

What is Ohm's Law?

• Ohm's Law is P = V * I, where P is the power, V is the voltage, and I is the current.

• Ohm's Law is V = I * R, where V is the voltage, I is the current, and R is the resistance.

• Ohm's Law is F = m * a, where F is the force, m is the mass, and a is the acceleration.

• Ohm's Law is E = mc^2, where E is energy, m is mass, and c is the speed of light.

State the formula for calculating resistance in a circuit.

• R = I / V

• R = V / I

• R = V - I

• R = V x I

Explain the relationship between voltage, current, and resistance in Ohm's Law.

• The relationship between voltage, current, and resistance in Ohm's Law is described by the equation V = I * R.

• In Ohm's Law, voltage is inversely proportional to current.

• Resistance is directly proportional to current in Ohm's Law.

• The relationship between voltage, current, and resistance is described by the equation V = I + R.

What is the unit of measurement for resistance?

• Ohm (Ω)

• Joule (J)

• Ampere (A)

• Volt (V)

Describe the function of a capacitor in an electrical circuit.

• A capacitor changes colors in an electrical circuit.

• A capacitor amplifies sound in an electrical circuit.

• A capacitor generates heat in an electrical circuit.

• A capacitor stores and releases electrical energy in an electric field.