F2 Science Electricity Exercise Top Jun 2026

A 6 V bulb draws 0.5 A. What is its power and resistance? Solution: ( P = V \times I = 6 \times 0.5 = 3 , \textW ) ( R = \fracVI = \frac60.5 = 12 , \Omega )

A three-pin plug includes an Earth wire , which safely diverts stray electrical current to the ground if a fault occurs, preventing electric shocks. Live wire: Brown (carries current to the appliance) Neutral wire: Blue (completes the circuit) Earth wire: Green and Yellow stripes (safety wire) Part 4: Exam Tips for F2 Electricity

Set a timer for 20 minutes. Redraw all the circuits from this article from memory. Then, find a friend and explain Question #10 to them. If you can teach it, you have truly mastered it. f2 science electricity exercise top

If a question gives you two values (e.g., Voltage and Resistance), you can always find the third (Current) by rearranging the formula:

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).) A 6 V bulb draws 0

C) So that switching off one appliance does not turn off the others. D) To reduce the total voltage used by the house. Answer: C Section B: Structured & Calculation Questions

Voltage stays the same, current splits. Repeating this rule aloud will save you from common traps in structured exam sections. Live wire: Brown (carries current to the appliance)

| | Insulators | |---|---| | Allow electricity to flow easily | Do not allow electricity to flow easily | | Have low resistance | Have high resistance | | Examples: Copper, Aluminum, Iron | Examples: Rubber, Wood, Plastic |

Always include units in your final answers (Amperes [A] for current, Volts [V] for voltage, Ohms [ Ωcap omega ] for resistance).

Understanding the difference is critical for structured exam questions: Series Circuit Parallel Circuit Only one path for current. More than one path (branches). Current ( ) Same at all points ( Splits between branches ( Voltage ( ) Shared across components. Same across each branch. Independence If one bulb breaks, all go out. Bulbs work independently. 3. Core Concepts and Vocabulary F2 Science Electricity Exercises | PDF - Scribd

Explanation: In a series circuit, there is only one path for electrons. The number of electrons passing point A per second equals the number passing point B. Current is constant.