Ohm's Law Calcul Series and Parallel Circuits Quiz…

Q: What is the relationship between voltage (V), current (I), and resistance (R) in a circuit according to Ohm's Law?

V = I * R — Ohm's Law states that Voltage is equal to Current multiplied by Resistance.

Q: In a series circuit, what is constant across all components?

Current — Current flows through all components in a series circuit and it's constant.

Q: In a parallel circuit, what is constant across all components?

Voltage — Voltage is the same across each parallel branch.

Q: How do you calculate the total resistance (Rt) of resistors in series?

Rt = R1 + R2 + R3 + ... — The total resistance is the sum of all individual resistances in series.

Q: How do you calculate the total resistance (Rt) of resistors in parallel?

1/Rt = 1/R1 + 1/R2 + 1/R3 + ... — The reciprocal of total resistance equals the sum of the reciprocals of individual resistances.

Q: If a 10-ohm resistor and a 20-ohm resistor are connected in series to a 12V battery, what is the total current flowing through the circuit?

0.4 A — Rt = 10 + 20 = 30 ohms. I = V/R = 12/30 = 0.4 A

Q: If a 10-ohm resistor and a 20-ohm resistor are connected in parallel to a 12V battery, what is the current flowing through the 10-ohm resistor?

1.2 A — I = V/R = 12/10 = 1.2 A

Q: What happens to the total current in a series circuit if one resistor burns out (opens)?

The total current becomes zero. — An open circuit prevents current flow, resulting in zero current.

Q: What happens to the total current in a parallel circuit if one resistor burns out (opens)?

The total current decreases. — Opening one branch increases the overall resistance, reducing total current (but current still flows in other branches).

Q: A circuit has a voltage of 24V and a current of 2A. What is the total resistance?

12 ohms — R = V/I = 24/2 = 12 ohms

Question 1 of 10

What is the relationship between voltage (V), current (I), and resistance (R) in a circuit according to Ohm's Law?

Ohm's Law states that Voltage is equal to Current multiplied by Resistance.

Question 2 of 10

In a series circuit, what is constant across all components?

Current flows through all components in a series circuit and it's constant.

Question 3 of 10

In a parallel circuit, what is constant across all components?

Voltage is the same across each parallel branch.

Question 4 of 10

How do you calculate the total resistance (Rt) of resistors in series?

The total resistance is the sum of all individual resistances in series.

Question 5 of 10

How do you calculate the total resistance (Rt) of resistors in parallel?

The reciprocal of total resistance equals the sum of the reciprocals of individual resistances.

Question 6 of 10

If a 10-ohm resistor and a 20-ohm resistor are connected in series to a 12V battery, what is the total current flowing through the circuit?

Rt = 10 + 20 = 30 ohms. I = V/R = 12/30 = 0.4 A

Question 7 of 10

If a 10-ohm resistor and a 20-ohm resistor are connected in parallel to a 12V battery, what is the current flowing through the 10-ohm resistor?

I = V/R = 12/10 = 1.2 A

Question 8 of 10

What happens to the total current in a series circuit if one resistor burns out (opens)?

An open circuit prevents current flow, resulting in zero current.

Question 9 of 10

What happens to the total current in a parallel circuit if one resistor burns out (opens)?

Opening one branch increases the overall resistance, reducing total current (but current still flows in other branches).

Question 10 of 10

A circuit has a voltage of 24V and a current of 2A. What is the total resistance?

R = V/I = 24/2 = 12 ohms

Ohm's Law Calcul Series and Parallel Circuits Quiz