IndiaBIX

Electronics and Communication Engineering - Materials and Components

Exercise : Materials and Components - Section 3
41.
In carbon resistor colour code, if the third band is of silver, it indicates
that three zeros are to be added to indicate the resistance value
multiplier is 0.01
multiplier is 0.1
tolerance is ± 5%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
In a metal, the drift velocity of electrons in the presence of a electric field E is
proportional to E
proportional to E
inversely proportional to E
proportional to E2
Answer: Option
Explanation:

Drift velocity is proportional to field strength.

43.
At a temperature of about 1 K, aluminium is a
conductor
insulator
photoconductor
superconductor
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
An electron is moving in a circular orbit of radius R at angular velocity ω0 in a field free space. If a magnetic field B is created, the velocity of electron ω will be given by the equation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
If v is the velocity of electron, tc is the average time between collisions, the mean free path λ = vtc.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers