Magnetic Effects of Electric Current

The video demonstrates an activity to test how an electric current-carrying wire behaves like a magnet. A thick copper wire is connected to an electric circuit, and a compass is used to detect the magnetic field created when current flows through the wire. The deflection of the compass needle indicates the presence of a magnetic field, confirming that the wire behaves like a magnet when carrying current.

What is the purpose of connecting a thick copper wire to an electric circuit in the activity?

• To generate heat in the wire

• To measure the resistance of the wire

• To observe the behavior of the wire when current flows through it

• To test the conductivity of the wire

Why is a compass placed near the thick copper wire?

• To measure the temperature of the wire

• To detect the magnetic field created by the current

• To check the alignment of the wire

• To observe the color change in the wire

What happens to the compass needle when the current starts to flow through the copper wire?

• It changes color

• It remains stationary

• It vibrates

• It deflects

What does the deflection of the compass needle indicate?

• There is a magnetic field around the conductor

• The current is too weak

• The compass is malfunctioning

• The wire is broken

What conclusion can be drawn from the activity?

• Electric current does not affect the wire

• The wire heats up significantly

• The wire loses its conductivity

• Electric current carrying wire behaves like a magnet