Define resistance and state the units it is measured in

PHYSICS · Multi-part · A Level · Physics · Electricity · Electricity

Problem

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\mu 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\mu A; voltage across resistor = 5 V - iii Current flowing through = 30 mA; voltage across resistor = 120 V (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\mu A; voltage across resistor = 5 V - iii Current flowing through = 30 mA; voltage across resistor = 120 V

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