Across
- 2. Circuit A type of electrical circuit in which components are connected end-to-end, so the current flows through each component sequentially.
- 4. The difference in electrical potential energy between two points in a circuit, which causes electric current to flow, measured in volts (V).
- 7. Power The rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt (W), calculated as , where is power, is current, and is voltage.
- 10. Law A fundamental law of electricity stating that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R). Expressed as .
- 11. by Induction A method of redistributing the electrical charge on an object by bringing a charged object close to it without direct contact.
- 12. Electricity The accumulation of electric charges on an object's surface. This can occur when two materials come into contact and electrons are transferred from one to the other.
- 14. A closed loop or pathway that allows electric charges to flow. It consists of various electrical components like resistors, capacitors, and switches.
- 15. A material that resists the flow of electric charge. Examples include rubber, glass, and plastic, which are used to coat or encase electrical wires.
- 16. Circuit A circuit configuration in which components are connected across common points or junctions, providing multiple paths for the current to travel.
Down
- 1. The opposition to the flow of electric current, resulting in the production of heat. It is measured in ohms (Ω).
- 3. A safety device in electrical circuits designed to prevent excessive current flow that could cause damage or fire. It contains a metal wire that melts when too much current flows, breaking the circuit.
- 5. Current The flow of electric charge through a conductor, typically measured in amperes (A).
- 6. by Contact The process of transferring charge between objects by touching or rubbing them together.
- 8. of Conservation of Charge A fundamental principle stating that the total electric charge in an isolated system remains constant regardless of changes within the system.
- 9. An electrical component used to store energy electrostatically in an electric field. It can release the stored energy when needed in a circuit.
- 13. A material that allows the flow of electrical charge or heat. Metals like copper and aluminum are common conductors.