Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Home
»
Electronics and Communication Engineering
»
Materials and Components
Nichrome is used for
overload line wires
heater coils
lamp filaments
all of the above
Correct Answer:
heater coils
Explanation:
Because heater coil must be made of high resistivity material.
← Previous Question
Next Question→
More Questions from
Materials and Components
Assertion (A): Metals are better heat conductors than insulators. Reason (R): If is temperature gradient, Q is heat flow density and K is thermal conductivity, then Q = - K (dT/dx).
Semiconductors have a positive temperature coefficient of resistivity.
An electrolytic capacitor can be used for
For a given value (n) of principle quantum number, the number of possible electronic states are
A sheet of bakelite is inserted between the plates of an air capacitor. The capacitance will
In a virgin specimen of iron, the direction of spontaneous magnetisation varies from domain to domain.
The orientation polarization of a polyatomic gas is inversely proportional to absolute temperature.
If the valence electron is separated from a copper atom, the remaining part of atom has a net charge of
Assertion (A): Magnetic susceptibility of copper is -0.5 x 10-5. Reason (R): Copper is diamagnetic material.
If there are no permanent dipoles in a dielectric material, the dielectric constant is independent of temperature.
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments