Question 1

What does net resistance mean?

Accepted Answer

The total resistance of all the components based on their series and parallel configurations.

Answer

For all the components in a circuit - it’s the one that has the highest resistance.

Answer

The overall resistance of just the resistors in a circuit.

Answer

The overall resistance which you get by adding together the resistances of all the components in a circuit.

Question 2

A 5 ohm resistor is placed in PARALLEL with a 10 ohm resistor. What is the net resistance?

Accepted Answer

Lower than 5 ohms.

Answer

50 ohms

Answer

7.5 ohms

Answer

15 ohms

Question 3

A 5 ohm resistor is placed in SERIES with a 10 ohm resistor. What is the net resistance?

Accepted Answer

15 ohms

Answer

Lower than 5 ohms.

Answer

7.5 ohms

Answer

50 ohms

Question 4

A 3 ohm resistor is placed in PARALLEL with a 2 ohm resistor. What is the net resistance?

Accepted Answer

Lower than 2 ohms.

Answer

2.5 ohms

Answer

5 ohms

Answer

6 ohms

Question 5

A 3 ohm resistor is placed in SERIES with a 2 ohm resistor. What is the net resistance?

Accepted Answer

Lower than 2 ohms.

Answer

2.5 ohms

Answer

5 ohms

Answer

6 ohms

Question 6

What quantity is measured in coulombs?

Accepted Answer

charge

Answer

resistance

Answer

potential difference

Answer

current

Question 7

What is the equation for resistance?

Accepted Answer

resistance = voltage ÷ current

Answer

resistance = voltage x current

Answer

resistance = current ÷ voltage

Answer

resistance = current x time

Question 8

If you had a series circuit with a LDR and a bulb, and the light intensity increased, what would happen to the brightness of the bulb?

Accepted Answer

The bulb becomes dimmer.

Answer

Don't know!

Answer

The bulb's brightness stays the same.

Answer

The bulb becomes brighter.

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