9th October 2018


What types of wires have a high resistance?

Types. Nichrome, a non-magnetic 80/20 alloy of nickel and chromium, is the most common resistance wire for heating purposes because it has a high resistivity and resistance to oxidation at high temperatures. When used as a heating element, resistance wire is usually wound into coils.

Why does a thicker wire conduct more electricity?

The thin wire will conduct electricity, but there is more electrical resistance. The thicker wire is like the four lane highway. There's a lot less electrical resistance, and as a result, that light bulb burns brighter because more electricity can reach it.

Why are thick wires rather than thin wires used to carry large currents?

2) Why are thick wires rather than thin wires usually used to carry large currents? Ans. Thick wires have less resistance and so they will heat up less when a large current is passed through them. The resistance of a wire is proportional to its length and inversely proportional to its cross-sectional area.
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