Top ~repack~ — F2 Science Electricity Exercise

Always convert units to standard form (e.g., convert milliamperes (mA) to Amperes (A) by dividing by 1,000 before doing calculations).

Electricity only flows in a closed circuit . An open switch or broken wire creates an open circuit.

Identify the mistake: “A student connects a voltmeter in series with a bulb. What happens?” (Answer: Very little current flows because voltmeter has high resistance; bulb barely lights.) f2 science electricity exercise top

): The rate of flow of electric charge. It is measured in Amperes (A) using an ammeter connected in . Voltage / Potential Difference (

– Only electrons move during friction. Gaining electrons gives an object a negative charge. Always convert units to standard form (e

Explanation: The "top rule" for parallel circuits: Voltage is the same across every branch. The battery pushes 6V, so every component gets the full 6V.

). Adding more bulbs increases the total resistance, which dims the lights. Part B Answers For a parallel circuit, use the reciprocal formula: Identify the mistake: “A student connects a voltmeter

Charges flow when two different non-conducting materials rub against each other, causing friction. Electrons transfer from one material to another.

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If one appliance breaks or is switched off, the other appliances remain functional because the remaining paths stay closed.