Electrical Circuit Fundamentals and Calculations…

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

Ampere (A) — Current is the flow of charge, measured in Amperes.

Q: Which of the following is the correct formula for Ohm's Law?

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

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

Ohm (?) — Resistance opposes current flow, measured in Ohms.

Q: In a series circuit, what is constant?

Current — In a series circuit, the current is the same through all components.

Q: In a parallel circuit, what is constant?

Voltage — Voltage is the same across all branches in a parallel circuit.

Q: What is the formula to calculate electrical power (P)?

P = V * I — Power (P) is equal to Voltage (V) multiplied by Current (I).

Q: What is the equivalent resistance of two 10? resistors connected in series?

20 ? — Series resistance adds up: 10? + 10? = 20?.

Q: What is the equivalent resistance of two 10? resistors connected in parallel?

5 ? — Parallel resistance: 1/R_eq = 1/10 + 1/10, R_eq = 5?.

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

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

Q: Which of the following describes the relationship between voltage, current, and resistance?

Ohm's Law — Ohm's Law defines the relationship: V = IR.

Question 1 of 10

What is the unit of measurement for electric current?

Current is the flow of charge, measured in Amperes.

Question 2 of 10

Which of the following is the correct formula for Ohm's Law?

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

Question 3 of 10

What is the unit of measurement for electrical resistance?

Resistance opposes current flow, measured in Ohms.

Question 4 of 10

In a series circuit, what is constant?

In a series circuit, the current is the same through all components.

Question 5 of 10

In a parallel circuit, what is constant?

Voltage is the same across all branches in a parallel circuit.

Question 6 of 10

What is the formula to calculate electrical power (P)?

Power (P) is equal to Voltage (V) multiplied by Current (I).

Question 7 of 10

What is the equivalent resistance of two 10? resistors connected in series?

Series resistance adds up: 10? + 10? = 20?.

Question 8 of 10

What is the equivalent resistance of two 10? resistors connected in parallel?

Parallel resistance: 1/R_eq = 1/10 + 1/10, R_eq = 5?.

Question 9 of 10

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

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

Question 10 of 10

Which of the following describes the relationship between voltage, current, and resistance?

Ohm's Law defines the relationship: V = IR.

Electrical Circuit Fundamentals and Calculations Quiz