P7-magnetism And Electromagnetism

Question 1

How do you plot a magnetic field

Answer 1

Step 1: Draw round the magnetic.
Step 2: Draw a dot at the head of the compass.
Step 3: put the tail of the compass on the previous dot.
Step 4: repeat

Question 2

What is a solenoid ?

Answer 2

A coil of wire

If there’s a current = magnetic field

Question 3

How do you increase the magnetic field of a solenoid?

Answer 3

Increase current
Increase potential difference
Increase the number of coils

Question 4

How do I make an electromagnet ?

Answer 4

Coil of wire and a magnetic material