F2 Science Electricity Exercise Top Better -

Check your answers below to see how you did!

| Feature | Series Circuit | Parallel Circuit | | :--- | :--- | :--- | | | The current is the same everywhere in the circuit. | The total current is divided between the different branches. | | Voltage | The total voltage is shared between the components. | The voltage is the same across each branch. | | Resistance | The total resistance is the sum of all resistances: ( R_t = R_1 + R_2 + R_3 + ... ) | The reciprocal of the total resistance is the sum of the reciprocals: ( \frac1R_t = \frac1R_1 + \frac1R_2 + \frac1R_3 + ... ) | | Component Failure | If one component fails (e.g., a bulb blows), the circuit is broken and all components stop working. | If one branch fails, current continues to flow through the other branches, and they continue to function. | | Switches | A single switch controls the entire circuit. | Multiple switches can control individual branches. | | Brightness | Adding more components in series makes all of them dimmer. | Adding more branches in parallel does not affect the brightness of the existing components. |

is a material's opposition to the flow of electric current. It is measured in ohms (Ω) . A conductor (like copper) has low resistance, while an insulator (like rubber) has high resistance.

| | 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 | f2 science electricity exercise top

for the current. If one bulb blows, the whole circuit breaks. : There are multiple paths

A plastic rod is rubbed with a silk cloth. The rod becomes negatively charged. Which statement best explains this phenomenon? A) The rod gained protons from the cloth. B) The rod lost electrons to the cloth. C) The rod gained electrons from the cloth. D) Protons moved from the cloth to the rod. Question 2: Circuit Components

Charges that build up on an object and remain at rest (e.g., rubbing a balloon on hair). Check your answers below to see how you did

Ready to test your knowledge? Try these questions modeled after common Form 2 exam papers.

A) V = I + R B) V = I × R C) V = R / I D) V = I – R

): The rate of flow of electric charge. Measured in Amperes (A) using an ammeter connected in series. Voltage / Potential Difference ( | | Voltage | The total voltage is

Always check if current is given in milliamperes ( ). If it is, divide by 1,000 to convert it to Amperes ( ) before calculating. Share public link

I=VRjcap I equals the fraction with numerator cap V and denominator cap R sub j end-fraction