1. Define *resistance* and state the units it is measured in.
2. State the SI base units for resistance.
3. Calculate the resistance of the following resistors:
- i Current flowing through = 250 mA; voltage across resistor = 0.5 V
- ii Current flowing through = 50 μ A; voltage across resistor = 5 V
- iii Current flowing through = 30 mA; voltage across resistor = 120 V
c. Calculate the resistance of the following resistors:
- i Current flowing through = 250 mA; voltage across resistor = 0.5 V
- ii Current flowing through = 50 μ A; voltage across resistor = 5 V
- iii Current flowing through = 30 mA; voltage across resistor = 120 V