Understanding Circuits and Resistance

What is the total resistance in a series circuit with resistors of 2 ohms, 3 ohms, and 5 ohms?

• 8 ohms

• 5 ohms

• 10 ohms

• 12 ohms

How do you calculate the total resistance in a parallel circuit with two resistors of 4 ohms each?

• 8 ohms

• 4 ohms

• 1 ohm

• 2 ohms

In a combination circuit, if one branch is in series with a 6 ohm resistor and another branch is in parallel with a 3 ohm resistor, how do you find the total resistance?

• 6 ohms

• 3 ohms

• 12 ohms

• 9 ohms

What tool do you use to measure current in a series circuit?

• Voltmeter

• Ohmmeter

• Capacitor

• Aammeter

According to Ohm's Law, if the voltage is 12 volts and the resistance is 4 ohms, what is the current?

• 6 amps

• 3 amps

• 4 amps

• 2 amps

In a series circuit, if you have a 9V battery and two resistors of 3 ohms and 6 ohms, what is the voltage across the 3 ohm resistor?

• 3V

• 1V

• 9V

• 6V

What happens to the total resistance when you add more resistors in series?

• The total resistance fluctuates randomly.

• The total resistance decreases.

• The total resistance increases.

• The total resistance remains the same.

How do you find the equivalent resistance of three resistors in parallel: 2 ohms, 3 ohms, and 6 ohms?

• 2.5 ohms

• 5 ohms

• 1 ohm

• 4 ohms

If the current in a circuit is 2 amps and the resistance is 5 ohms, what is the voltage?

• 10 volts

• 2 volts

• 5 volts

• 15 volts

What is the total resistance of a circuit with a 10 ohm resistor in series with a 5 ohm resistor?

• 10 ohms

• 15 ohms

• 5 ohms

• 20 ohms