| What will an Electric Current have around? | It will have a Magnetic Field |
| What factors can affect the Magnetic Field around an Electric Current | -Larger the Current, Bigger the Magnetic Field |
| In a Straight Current Carrying wire, what does the Magnetic Field look like? | There are Concentration Circles around the Wire. The Direction of the Field can be done by the Right Hand Rule. |
| How can you prove there is a Magnetic Field Lines in the Current | Using a Compass, that will Point in the Field lines or Iron Fillings. |
| What is the Right Hand Rule in terms of Magnetism | This can show the Direction of the Magnetic Field Lines in a Straight Current Carrying wire. Simply point where the Current is going, and where you hand Curls around, is the Direction of the Field Lines |
| Explain the Relationship with Distance and Magnetic Flux Density | The further away you are from the line, the Magnetic Flux Density will get weaker
They are Inversely Proportional. |
| What is the Magnetic Field in a Flat Circular Coil | The centre can compare to the Bar Magnets Field Lines, and around the coil is Ellipses of Magnetic Field Lines. |
| What does Lots of Coils of Wire make? | This can make a Solenoid |
| Describe the Magnetic Field of a Solenoid | -The insides, has the Magnetic Field very Strong, and Uniform
-The outsides, has the Magnetic Field like a Bar Magnet [North goes to South]
-The Ends of the Solenoid are like the Poles of a Magnet. This is called an Electromagnet. |
| What factors can Increase the Magnetic effect on the Ends of the Solenoid | -Current of the Wire changes
-Number of Turns [More coils of wire, but length the same]
-Length of Solenoid [Number of Turns don't change] [Decrease = Increase in Magnetic Effect]
-Iron Core is put in the Insides |
