Answer the questions below.
For each item, select an option. When finished, click the "Done" button.
1. What is the equation to measure resistance?
R = V/I
R = V x I
R = I/V
2. What is the unit of measurement for resistance?
3. If you add more resistors what should you consider?
They should all be different resistance
They should all the be same resistance
It does not matter if they are the same or different
4. How is the ammeter placed in the circuit?
There is no need to use an ammeter
5. How is potential difference measured?
A voltmeter in parallel across the resistors
An ammeter in parallel across the resistors
A voltmeter in series either side of the resistors
6. If the results are plotted on a graph with number of resistors on x axis and resistance on y axis what would the shape of the graph be?
7. How does length of wire in a circuit change resistance?
The longer the wire the lower the resistance
No change to resistance regardless of length
The shorter the wire the lower the resistance
8. How does thickness of wire in a circuit affect resistance?
No change to resistance regardless of thickness
Thicker wires have less resistance
Thinner wires have less resistance
9. How is resistance affected in a parallel circuit by adding more resistors?
When you add resistors the total resistance in the circuit decreases
When you add resistors the total resistance in the circuit increases
The change in resistance is directly proportional to the number of resistors
10. To achieve constant resistance what needs also to be constant?