Mammoth Memory

Detailed magnetic field around a solenoid

The diagram below gives you a detailed look at the magnetic fields formed with loops that surround the wire and join to form larger loops that surround the coil.

Magnetic fields formed by loops of wire with a current flowing.

The north and south mnemonic can be seen to clearly work . . .

North and south mnemonic

. . . and so too the right hand grip rule can be seen to work clearly on each wire.

Right hand rule

An easier way to see the effects of magnetic fields in a solenoid is to use one loop, as below.

Magnetic field formed with one loop


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