Class practical: the deflection of a compass needle increases with the current carried by a wire.

Practical Activity 14-16

Class practical: a plotting compass and iron filings show that the shape of this magnetic field resembles that of a permanent...

Practical Activity 14-16

Class practical: iron filings show that a long, closely wound current-carrying coil behaves just like a bar magnet.

Practical Activity 14-16

Class practical: iron filings reveal the pattern of magnetism around a current-carrying wire, and factors that affect it.

Practical Activity 14-16

Class practical: using a plotting compass and iron filings to explore the field pattern.

Practical Activity 14-16

Teaching notes on using iron fillings in the classroom.

Teaching Guidance 14-16

Robert Norman was a scientific instrument-maker, working in London in the 1560s-80s. Among other devices, he made compasses...

Physics Narrative 14-16