Electric current is the rate of flow of electric charges (electrons) through a conductor . The SI unit is the ampere (A) .
Given a diagram, identify whether a device is an ammeter or voltmeter, and calculate the total resistance. Tip: Know that ammeters go in series and voltmeters go in parallel. 4. Electricity Safety & Household Circuits f2 science electricity exercise top
In an electric circuit, resistance is: A) A connection terminal that is difficult to unscrew. B) Something which does not allow any charge to flow. C) A component connected the wrong way around. D) Something that restricts the flow of charge, transferring energy in the process. Electric current is the rate of flow of
Calculate the current flowing through Branch 1. (( I = V/R )) Q8. Calculate the current flowing through Branch 2. Q9. Calculate the total current drawn from the battery. Q10. Top Question: If you add a third bulb in parallel to the first two, what happens to the brightness of the original two bulbs? Explain why. Tip: Know that ammeters go in series and