Effect of moisture on the insulating materials is to
A. Decrease dielectric constant
B. Decrease dielectric strength
C. Decrease insulation resistance
D. Increase dielectric loss
E. All of the above
Answer: Option E
A. Decrease dielectric constant
B. Decrease dielectric strength
C. Decrease insulation resistance
D. Increase dielectric loss
E. All of the above
Answer: Option E
On which of the following factors does the resistivity of a material depend ?
A. Resistance of the conductor
B. Area of the conductor section
C. Length of the conductor
D. All of the above
Piezoelectric materials serve as a source of ________ .
A. Resonant waves
B. Musical waves
C. Microwaves
D. Ultrasonic waves
The tiny block formed by the arrangement of a small group of atoms is called the
A. Unit cell
B. Space lattice
C. Either A or B
D. None of the above
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