Edexcel P1 generating electricity Questions with 100% Correct Answers | Latest Update 2024

Edexcel P1 generating electricity Questions with 100% Correct Answers | Latest Update 2024 What happens when you move a magnet near a wire? An induced current is produced What happens when you move a wire near a magnet? An induced current is produced What is an induced current? The current produced when a magnet moves near a wire (or vice-versa) Name 3 ways of increasing an induced current more coil on the wire; a stronger magnet;moving the wire (or the magnet) faster What is direct current (DC)? A current that flows always in the SAME direction. Name objects that use direct current Torches, wind up radios. What is alternating current (AC)? A current that CHANGES direction many times per second What type of magnets are used in power stations? Why? Electromagnets are used because they can be made to be really strong magnets (much stronger than "natural" magnets) What is inside a generator? A coil wound up around an iron core; the coil turns around permanent magnets. How can you reverse the direction of an induced current? Swap the magnet around; or make it go in the other direction What type of current is produced in power stations? Alternating current What is the voltage produced in power stations? 25 000V (aka 25 kV) What is the voltage when transported in transmission lines? 400 000V (aka 400kV) What is the voltage used at home? 230V Why is voltage increased before being sent through the National Grid? So that less energy is wasted in heat during transport. What happens when electricity is passing through a wire? The wire heats up