A(n) is created by passing current through a coil of wire wrapped about an iron core.
a
permanent magnet
b
motor
c
electromagnet
d
generator
The answer is c) electromagnet.
c) electromagnet
To determine the correct answer, let's analyze the information given. The statement mentions that an object is created by passing current through a coil of wire wrapped about an iron core.
This process describes the fundamental principle of electromagnetism. When an electric current flows through a wire, it generates a magnetic field around the wire. By wrapping the wire into a coil, the magnetic field created by each turn of the wire adds up, strengthening the overall magnetic field.
The iron core helps to enhance the magnetic field as iron is a ferromagnetic material that easily magnetizes. Therefore, when current passes through the coil wrapped around the iron core, it results in the creation of a strong magnetic field.
Based on this explanation, the correct answer is c) electromagnet, as it describes the object created when current passes through the wire coil wrapped around an iron core.