Question88:-Nichrome is widely used for :
A:-Transformer winding
B:-Circuit connections
C:-Heater coils
D:-Lamp filaments
Correct Answer:- Option-C
Question89:-The resistance of a conductor on increasing the temperature :
A:-Increases
B:-Decreases
C:-Constant
D:-Varies
Correct Answer:- Option-A
Question90:-The unit for flux density is :
A:-Henry/'m~2" ` `
B:-Newton/'m~2"
திவ 1072
D:-None of the above
Correct Answer:- Option-C
Question91:-The magnetic potential in a magnetic circuit can be measured in terms of :
A:-Farads
B:-Coulombs
C:-EMF
D:-MMF
Correct Answer:- Option-D
Question92:-Which one of the following capacitors is only suitable for direct voltage 7
A:-Aluminium foil capacitor
B:-Metalic paper capacitor
C:-Unpoled aluminium elctrolyte capacitor
D:-Poled aluminium electrolyte capacitor
Correct Answer:- Option-D
Question93:-Which resistor is commonly used for general purpose application 7
A:-Wire-wound resistors
B:-Carbon resistors
C:-Metal film resistors
D:-Carbon film resistors
Correct Answer:- Option-B
Question94:-To solder resistors on a PCB the soldering iron wattage should be :
A:-25
B:-60
C:-150
D:-240
Correct Answer:- Option-A
Question95:-Intermediate frequency transformers use :
A:-Iron core
B:-Ferrite core
C:-Air core
D:-Both Iron core and Air core
Correct Answer:- Option-B
Question96:-In a DC circuit capacitor acts like a :
A:-Open Circuit
B:-Inductance
C:-Short Circuit
D:-Resistance whose value depends on the dielectic material
Correct Answer:- Option-A
Question97:-Which one of them is not a semiconductor 7

B:-Germanium
C:-Carbon
D:-Galium arsenide