Understanding Resistors and Circuits

What is Ohm's Law?

• V = R / I

• V = I + R

• Ohm's Law is V = I * R.

• V = I / R

What is the formula for calculating resistance?

• R = V + I

• R = I / V

• R = V / I

• R = V * I

In a series circuit, how do you calculate total resistance?

• 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)

What happens to the total resistance in a parallel circuit?

• The total resistance decreases.

• The total resistance increases.

• The total resistance fluctuates.

• The total resistance remains the same.

What is the unit of capacitance?

• farad

• ohm

• watt

• volt

How do you calculate the total capacitance in a series circuit?

• C_total = C1 + C2 + ... + Cn

• C_total = C1 * C2 * ... * Cn

• C_total = 1 / (1/C1 + 1/C2 + ... + 1/Cn)

• C_total = C1 - C2 - ... - Cn

What is the function of a capacitor in a circuit?

• A capacitor acts as a resistor in a circuit.

• A capacitor stores and releases electrical energy in a circuit.

• A capacitor converts electrical energy into heat.

• A capacitor amplifies electrical signals in a circuit.

What is the unit of inductance?

• ohm

• volt

• henry

• farad

How do you calculate the total inductance in a series circuit?

• L_total = L1 * L2 * L3 * ... * Ln

• L_total = L1 - L2 - L3 - ... - Ln

• L_total = L1 + L2 + L3 + ... + Ln

• L_total = L1 / L2 / L3 / ... / Ln

What is the role of an inductor in a circuit?

• To amplify the voltage in a circuit.

• The role of an inductor in a circuit is to store energy and resist changes in current.

• To convert AC to DC current.

• To measure the resistance in a circuit.