|
The ideal core material for small reactors and transformers employed in ___
|
|
0
|
114
|
September 29, 2021
|
|
For ferro-magnetic materials the ___
|
|
0
|
107
|
September 29, 2021
|
|
Ferro-electric materials are the dielectrics analogous to ___
|
|
0
|
136
|
September 29, 2021
|
|
When the temperature exceeds a certain value called the ___
|
|
0
|
137
|
September 29, 2021
|
|
Which of the following kind of breakdown is possible in solid dielectrics?
|
|
0
|
143
|
September 29, 2021
|
|
Dielectrics have ___
|
|
0
|
158
|
September 29, 2021
|
|
Electronegative gases are ___
|
|
0
|
286
|
September 29, 2021
|
|
The insulating materials to be used for most of electronic equipment should ___
|
|
0
|
130
|
September 29, 2021
|
|
Insulators have which of the following?
|
|
0
|
140
|
September 29, 2021
|
|
Emitter arrow, in a transistor, shows the direction of ___
|
|
0
|
115
|
September 29, 2021
|
|
In a semiconductor, the hole formed is ___
|
|
0
|
165
|
September 29, 2021
|
|
___ is an element used in semiconductors whose atoms have three valence
|
|
0
|
166
|
September 29, 2021
|
|
Effect of moisture on the insulating materials is ___
|
|
0
|
276
|
September 29, 2021
|
|
The conduction of electricity, in semiconductors, takes place due to ___
|
|
0
|
146
|
September 29, 2021
|
|
Which of the following is an advantage of stranded conductor over equivalent single conductor?
|
|
0
|
143
|
September 29, 2021
|
|
Carbon resistors are used extensively because they are ___
|
|
0
|
112
|
September 29, 2021
|
|
In graphite, bonding is ___
|
|
0
|
127
|
September 29, 2021
|
|
Most of the common metals have ___
|
|
0
|
116
|
September 29, 2021
|
|
In thermocouples which of the following pairs is commonly used?
|
|
0
|
192
|
September 29, 2021
|
|
If the domain walls in a magnetic material can be easily moved the ___
|
|
0
|
124
|
September 29, 2021
|
|
The transition temperature of mercury is ___
|
|
0
|
171
|
September 29, 2021
|
|
The value of critical field below the transition temperature will ___
|
|
0
|
137
|
September 29, 2021
|
|
A perfect conductor has ___
|
|
0
|
485
|
September 29, 2021
|
|
If the domain walls in a magnetic material can be ___
|
|
0
|
144
|
September 29, 2021
|
|
Magnetically hard materials possess which of the following characteristics?
|
|
0
|
139
|
September 29, 2021
|
|
Curie temperature is the temperature above which a ___
|
|
0
|
124
|
September 29, 2021
|
|
The ___ polarisation vanishes at Curie temperature of the material
|
|
0
|
118
|
September 29, 2021
|
|
A ferro-electric material contains small regions which are polarised in ___
|
|
0
|
137
|
September 29, 2021
|
|
Dielectric strength is expressed in ___
|
|
0
|
148
|
September 29, 2021
|
|
By which of the following methods the insulation can be protected against moisture?
|
|
0
|
155
|
September 29, 2021
|