Magnetic Field Flashcards
What is a magnetic field?
A magnetic field is a region Where magnetic materials and also wires carrying currents experience a force acting on them.
Which way do the arrows on field diagram point?
From the north pole to the south pole.
A magnetic field around a straight current carrying wire, is made up of…
Concentric circles
A coil of wire
Solenoid
The ends of a solenoid magnet act like…
The north and south pole of a bar magnet.
The right hand thumb rule
The right hand thumb rule shows which way the magnetic field goes.
What is an electromagnet?
A magnetically soft iron core through the middle of the coil which is used to increase the strength of the magnetic field.
A magnetically soft material
Magnetises and demagnetises very easily.
Which metals are magnetic?
Iron, steel and nickel.
