c) TWO effects of electric current and their automobile applications are:

Okay, Anthony, let's continue with these questions.

c) TWO effects of electric current and their automobile applications are:

• Heating Effect: Electric current flowing through a conductor generates heat due to resistance.
  • Automobile application: Car heater/defroster (uses resistive elements to generate heat for cabin warming or window defrosting).
• Magnetic Effect: Electric current flowing through a conductor produces a magnetic field around it.
  • Automobile application: Starter motor (uses the magnetic field created by current in coils to turn the engine's flywheel).

d) FOUR safety measures to be observed when working on electrical appliances are:

• Always disconnect the power source (unplug or switch off the circuit breaker) before starting any work.
• Use insulated tools to prevent accidental contact with live wires and reduce the risk of electric shock.
• Ensure the work area is dry and free from moisture to avoid creating conductive paths for electricity.
• Inspect power cords and plugs for any damage (frays, cuts, exposed wires) and replace them if necessary before use.