Question

Which are potential sources of error in the experiment?

variable amounts of metal and magnetic properties of a material
holding the compass at an angle
the color of the bar magnet
unseen magnetic fields (such as from an electrical appliance)
the brand of light bulb used in the circuit
using a dead battery in the circuit

Answer 1

Answer: variable amounts of metal and magnetic properties of a material, holding the compass at an angle, unseen magnetic fields (such as from an electrical appliance) and, using a dead battery in the circuit

Explanation: Just did the assignment on ED.