Name two electric devices for each where(a) heating effect of current is used and(b) magnetic effect of current is used

(a) Heating effect of current:

1. Electric heater: An electric heater uses the heating effect of current to convert electrical energy into heat energy. It consists of a heating element, usually made of nichrome wire, which heats up when an electric current passes through it. This heat is then transferred to the surrounding environment, providing warmth.

2. Electric stove: An electric stove also utilizes the heating effect of current to generate heat for cooking. It typically consists of multiple heating elements, each made of a resistive material, such as nichrome wire. When electricity flows through these elements, they heat up, allowing for cooking or heating of food.

(b) Magnetic effect of current:

1. Electric motor: An electric motor is a device that converts electrical energy into mechanical energy using the magnetic effect of current. It consists of a coil of wire, called an armature, which is placed in a magnetic field. When an electric current passes through the coil, it creates a magnetic field that interacts with the external magnetic field, causing the armature to rotate and produce mechanical motion.

2. Loudspeaker: A loudspeaker is an electric device that converts electrical signals into sound waves using the magnetic effect of current. It consists of a coil of wire, called a voice coil, which is attached to a diaphragm. When an electric current passes through the voice coil, it interacts with a permanent magnet, causing the coil to move back and forth. This motion of the coil vibrates the diaphragm, producing sound waves that we hear as sound.