Question

Select four components that make up an electromagnet.

a
paper clip
b
power source
c
light bulb
d
wire coil
e
iron core
f
electric current

Answer 1

b, d, e, f

- b (power source) provides the energy
- d (wire coil) creates the magnetic field when current flows
- e (iron core) concentrates and strengthens the field
- f (electric current) is what produces the magnetic field in the coil