Question

Name the materials which are used for making the standard resistor.
This Question has multiple answers.
A) Chromium
B) Copper
C) Nickel
D) Tungsten

Answer 1

Resistor is an electrical component that reduces the electric current nichrome is used for making standard resistors, because it is an alloy and alloys have negligible effect of heat on resistance.

Complete answer:
Resistors are produced with a wide variety of materials and manufacturing processes. Each resistor material has its typical properties and specific areas of use. Below are a few types.
Wire –wound(WW):
These types are made by winding resistance wire in a spiral around a non-conductive core. The resistance of a wire is usually a nickel-chromium alloy and the core is often ceramic or fiberglass.
Carbon Composition (CCR):
The resistive element is made from a mixture of fine carbon particles and a non- conductive ceramic material. The substance is pressed in a cylindrical shape and baked. The resistance value depends on the dimensions of the body and the ratio between carbon and ceramic material.
Carbon Film:
A thin, pure carbon film is deposited on an insulating cylindrical core. A spiral cut is made in the film to increase the resistive path.
Metal Film Resistor:
Metal film resistors are usually made of Nichrome, but also other materials such as tantalum nitride is used. The resistive film is printed on a cylindrical or flat insulating substrate. The resistive material is a combination of a Ceramic material and a Metal, and therefore these resistors are also referred to as Cermet.
The main requirement for a resistor material is that it has to withstand high temperatures and ensure accuracy.

Therefore, from the above explanation the correct option is (A) Chromium and (C) Nickel.

Note:
Nichrome, a non – magnetic $80/20$ alloy of nickel and chromium, it is the most common resistance wire per heating purpose because it has high resistivity and resistance to oxidation at high temperatures when used as a heating element resistance wire is usually wound into the coil.