Question

Wire bound resistors are made by

• A. Winding the wire of an alloy of Ge, Au,Ga
• B. Winding the wire of an alloy of Cu, Al, Ag
• C. Winding the wire of an alloy of Manganin, Constantan,Nichrome
• D. Winding the wire of an alloy ofSi, Tu, Fe

Answer 1

Answer: (C)

Winding the wire of an alloy of Manganin, Constantan,Nichrome

Answer 2

Wire bound resistors are typically made by winding the wire of an alloy of Manganin, Constantan, and Nichrome.
Manganin is an alloy composed of copper, manganese, and nickel. It has a low temperature coefficient of resistance, meaning its resistance changes very little with temperature variations. Manganin is often used for precision resistors.
Constantan is another copper-based alloy made of copper and nickel. It has a relatively high resistivity and is commonly used in resistors due to its stable resistance over a wide temperature range.
Nichrome is a nickel-chromium alloy that is known for its high electrical resistivity. It is often used in heating elements and resistors where high-temperature applications are required.
Therefore, option (D) is the correct answer: wire bound resistors are made by winding the wire of an alloy of Manganin, Constantan, and Nichrome.