Electomagnets

Question 1

What happens when current flows through a wire ,

?

Answer 1

Magnetic field is created

Question 2

Where does current always flow out in a circuit

Answer 2

Positive terminal into the negative terminal of a cell/battery

Question 3

How to create an electromagnets ?

Answer 3

1. )wrap insulation wire around the soft iron bar
2. ) attach crocodile clips to the connecting wire
3. ) attach the crocodile clips at the end of the insulating wire

Question 4

What is electromagnets ?

Answer 4

When soft iron is inserted into solenoid it becomes stronger magnet calling this electromagnets

Question 5

Advantage of electromagnets over permanent magnets ?

Answer 5

Electromagnets can be turned off and on for example when picking up certain objects

Electric bell sound

Can change the strength of electromagnet by changing the current