P2 investigating resistance

Question 1

What is resistance in an electrical circuit?

Answer 1

Resistance is a measure of the opposition to the flow of electric current.

Question 2

True or False: Resistance is measured in ohms.

Answer 2

True

Question 3

Fill in the blank: The formula for calculating resistance (R) is R = V / ____.

Answer 3

I

Question 4

What does the symbol ‘R’ represent in electrical equations?

Answer 4

Resistance

Question 5

Which material typically has the lowest resistance?

Answer 5

Copper

Question 6

What is the effect of increasing the length of a conductor on its resistance?

Answer 6

Increasing the length of a conductor increases its resistance.

Question 7

Multiple Choice: What happens to resistance if the temperature of a conductor increases?

Answer 7

It generally increases.

Question 8

What is the relationship between voltage (V), current (I), and resistance (R) known as?

Answer 8

Ohm’s Law

Question 9

True or False: Series circuits have the same current flowing through all components.

Answer 9

True

Question 10

How does the cross-sectional area of a conductor affect its resistance?

Answer 10

Increasing the cross-sectional area decreases resistance.