Across
- 1. a conductor with the highest electrical conductivity
- 9. a device used to change the voltage of an a.c. electricity supply
- 10. a current of 2.4 A flows in a circuit. State how much charge flows past a point in one second.
- 12. in fleming's left hand rule the finger that represents direction of the magnetic field
- 13. what material is at the very top of the triboelectric series?
- 15. the force when 2 different insualting materials are rubbed together, causing electrons to get transferred from one to another
- 17. unit of electric current
- 18. a comb is brushed through hair multiple times, then it is brough very close to a steady stream of water, the water will bend ... the comb.
- 19. a battery supplies a current of 1.25 A to a circuit. Calculate how long it will take for 75C of charge to flow round the circuit.
Down
- 2. the pressure from and electrical circuit's power source that pushes charged electrons
- 3. an electromagnetically operated switch
- 4. in fleming's right hand rule the finger that represent the direction of motion of the conductor
- 5. "blows" when the current is too high
- 6. adjusted to change the resistance in a circuit
- 7. this formula (energy/time) is used to find what?
- 8. what kind of cell cannot be recharged
- 11. calculate the combined resistance of four 120 ohms resistors connected in series
- 13. glass rod and cloth have opposite charges
- 14. which type of electricity is the result of an imbalance between negative and positive charges in an object
- 16. a rod is left with a negative charge, which type of particle it has alot of?