Fundamentals of Basic Circuit Analysis

What is Ohm's Law?

• Ohm's Law defines power as P = I / R.

• Ohm's Law is I = V + R.

• Ohm's Law is V = I * R.

• Ohm's Law states that R = V / I.

Define voltage, current, and resistance.

• Voltage: electric potential difference; Current: flow of electric charge; Resistance: opposition to current flow.

• Voltage: energy per unit charge; Current: static electric charge; Resistance: measure of electric energy.

• Voltage: amount of electric charge; Current: potential difference across a circuit; Resistance: flow of electric potential.

• Voltage: measure of current flow; Current: resistance to electric potential; Resistance: speed of electric charge.

How do you calculate 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 = R1 / R2 / R3 / ... / Rn

What is the formula for calculating power in an electrical circuit?

• P = V × I

• P = V - I

• P = I / V

• P = V + I

Explain the difference between series and parallel circuits.

• Series circuits have multiple paths for current, while parallel circuits have a single path.

• Series circuits have a single path for current, while parallel circuits have multiple paths.

• In series circuits, the voltage is divided, while in parallel circuits, the current is divided.

• Series circuits can operate independently, while parallel circuits cannot.

What is Kirchhoff's Voltage Law?

• The total current in a circuit is constant.

• The power consumed in a circuit is equal to the voltage times the current.

• The sum of the voltages around a closed loop in a circuit is zero.

• The resistance in a circuit is always zero.

What is Kirchhoff's Current Law?

• The total current entering a junction equals the total current leaving the junction.

• The current is divided equally among all branches at a junction.

• The total voltage entering a junction equals the total voltage leaving the junction.

• The total current in a circuit is always zero regardless of junctions.

How do you find the equivalent resistance in a parallel circuit?

• R_eq = R1 - R2

• R_eq = R1 * R2 / (R1 + R2)

• R_eq = R1 + R2 + ... + Rn

• R_eq = 1 / (1/R1 + 1/R2 + ... + 1/Rn)

What is the purpose of a fuse in a circuit?

• The purpose of a fuse in a circuit is to protect against overcurrent by breaking the circuit when the current exceeds a safe level.

• To store electrical energy for later use.

• To increase the current flow in a circuit.

• To convert AC to DC voltage.

Describe the function of a capacitor in a circuit.

• A capacitor generates electrical energy for the circuit.

• A capacitor converts AC to DC voltage.

• A capacitor acts as a resistor to limit current flow.

• A capacitor stores and releases electrical energy, smooths voltage fluctuations, and filters signals in a circuit.