F2 Science Electricity Exercise Top ((exclusive)) -

Draw the circuit diagram for the description above. (Answer key: Draw a rectangle. Cell on the left, ammeter on top, L1 on right, L2 on bottom, all in one closed loop).

If one bulb blows, others stay lit (this is why houses are wired in parallel!).

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

Which wire is a safety device that carries current only if there is a fault? A. Live wire B. Neutral wire C. Earth wire (Correct) f2 science electricity exercise top

If an additional resistor is added in series, describe what happens to the brightness of the bulbs in the circuit.

Which of the following is the best conductor of electricity? A) Rubber B) Plastic C) Copper D) Wood

Resistance demonstration (qualitative)

Three resistors: 2 Ω, 3 Ω, and 5 Ω are in series with a 20 V battery. Find: a) Total resistance b) Circuit current c) Voltage across the 3 Ω resistor

battery connected in series with an ammeter and two resistors: Resistor A ( ) and Resistor B (

Materials (like plastic or rubber) that do not allow electricity to flow because they hold their electrons tightly . Part B: Measurement and Symbols Symbol Hint Ammeter Measures electric current; connected in series . A circle with an 'A'. Voltmeter Draw the circuit diagram for the description above

Explanation: In series, voltages add up to the battery voltage. ( V_battery = V_L1 + V_L2 ) ( 3V = 1.2V + V_L2 ) ( V_L2 = 1.8V )

Cover the letter you want to find with your finger to reveal the correct formula. If you want to continue practicing, tell me: