A) AmmeterB) VoltmeterC) ResistorD) Switch Q2. If two identical
To achieve a top score in your F2 science tests, you must be comfortable solving three main categories of questions. Below are examples and step-by-step solutions. Category 1: Calculating Ohm's Law
) : Measured in using a voltmeter connected in parallel. Current (
Test your knowledge with these top-rated Form 2 exam questions. Try to solve them on your own before looking at the answers. Section A: Multiple Choice Questions (MCQs) f2 science electricity exercise top
State the difference between a conductor and an insulator, and give one example of each. (Answer: A conductor allows electric current to flow easily (e.g., copper), while an insulator does not (e.g., rubber).)
Positive (protons) and negative (electrons).
Before attempting practice questions, you must understand the fundamental quantities that govern electrical circuits. 1. Electric Current ( A) AmmeterB) VoltmeterC) ResistorD) Switch Q2
To ensure you are fully prepared for your Form 2 Science exam, incorporate these top tips into your study routine.
No. Even if the switch is closed, the fuse is blown (open), so the circuit is still incomplete and no current can flow to light the bulb.
The opposition that a substance offers to the flow of electric current. Measured in Ohms ( Ωcap omega Category 1: Calculating Ohm's Law ) : Measured
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage across it, provided the temperature remains constant. V: Voltage / Potential Difference (Measured in Volts, V) I: Current (Measured in Amperes, A) R: Resistance (Measured in Ohms, Ωcap omega Series Circuits
What happens to the current if the voltage is halved but resistance stays the same? ) is directly proportional to Voltage ( ), so current is also halved. Which is a better conductor: Iron or Mercury? Iron, because it has lower resistivity than mercury. ✅ Summary of Formulas
When a dry cell runs out, the free electrons in the circuit disappear.