Why do the wires connecting an electric heater to the mains not glow while its heating element does?

The heater’s heating element is made up of an alloy that has very high resistance, so when current flows through the heating element, it becomes too hot and glows red. But the cord’s resistance, which is usually of copper or aluminium, is low, so it does not glow.

Why connecting wires do not get heated up?

The wires of the connecting cord of electric heater are made of copper. Copper has extremely low resistance, due to which there is negligible heat produced.

Why do the wires connecting an electric heater to the mains?

The wires connecting an electric heater to the mains not glow while its heating element does because heating element is made up of very high resistance hence it becomes hot and glows red whereas the resistance of connecting wires is usually made up of copper or aluminium is very low so it does not glow.

Why do the wires connecting?

Answer: Connecting wires allows an electrical current to travel from one point on a circuit to another because electricity needs a medium through which it can move.

Which two wires are connected to the heating element of the heater?

(b) The heating element of geyser should be connected to live wire and neutral wire.

Why is Nichrome used instead of copper?

Nichrome being 100 times more resisistive than copper produces good amount of heat when current passed through it and it overcomes the usage of copper having low resistivity and high conductivity in heating coil.

Why is Nichrome used as a heating element and not copper?

Nichrome does not oxidise in air or burn easily like other metals when heated at high temperature. Also, it has very high melting and boiling points, so it does not melt or break easily when a large amount of current flows through it whereas other metals like copper and aluminium do.

Why do we use copper wire as connecting wires in the circuit?

Copper is an excellent conductor of electricity, allowing electricity to flow freely through it. As a result, it’s employed to form wire connections. Copper has an extremely low electrical resistance when used as a connecting wire.

Why is very less quantity of heat energy produced in the connecting wires?

Why is very less quantity of heat energy produced in the connecting wires? Connecting wires have low resistance to the flow of current. This means, less of the electrical energy is converted to heat energy due to resistance.

Do connecting wires have high or low resistance?

Connecting wires in a circuit are assumed to have zero resistance unless otherwise stated. Wires in a circuit can be shortened or lengthened without impacting the circuit’s function—all that matters is that the components are attached to one another in the same sequence.

Why doesn’t the cord of an electric heater glow?

Why does the cord of an electric heater not glow while the heating element does? The heater’s heating element is made up of an alloy that has very high resistance, so when current flows through the heating element, it becomes too hot and glows red. But the cord’s resistance, which is usually of copper or aluminium, is low, so it does not glow.

Why does a heater glow red when current flows through it?

The heating element of heater is made up ofg alloy which has very high resistance. So, when current flows through the heating element. It becomes too hot and glows red due to heating effect of current. But resistance of cord which is usually of copper or aluminium is very low resistance.

What are the wires of an electric heater made of?

The wires of the connecting cord of electric heater are made of copper. Copper has extremely low resistance, due to which there is negligible heat produced. The heating element of an electric heater is made of nichrome wire. It glows because large amount of heat is produced due to its high resistance.

Why does the heater element heat up when plugged in?

This is because the heater is a resistor and the cord is a conductor. The resistor slows down the current and this causes friction which heats up the case of the resistor. This is what the element is.