Match each rule to what it gives

Exercise and reference answers

Matching pairs

1. Left

   Right hand thumb

   Right

   Field around a straight current wire

2. Left

   Fleming left hand

   Right

   Force on a current in a magnetic field

3. Left

   Fleming right hand

   Right

   Direction of an induced current

4. Left

   Oersted in 1820

   Right

   A current makes a magnetic field

5. Left

   Soft iron core

   Right

   Loses magnetism when the current stops

Instructions

Tap a rule or a part, then tap the line saying what it tells you about a magnetic field.

Explanation