A pentavalent impurity has______________Valence electrons?
A pentavalent impurity has______________Valence electrons?
A. 3
B. 5
C. 4
D. 6
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The horsepower of steam locomotives is______________?
The horsepower of steam locomotives is______________?A. up to 1500
B. 1500 to 2000
C. 2000 to 3000
D. 3000 to 4000If the collector supply is 10V, then collector cut off voltage under d.c. conditions is _______________?
If the collector supply is 10V, then collector cut off voltage under d.c. conditions is _______________?A. 20 V
B. 5 V
C. 2 V
D. 10 VWeber is the unit of_____________?
Weber is the unit of_____________?A. Magnetic field intensity
B. magnetic induction
C. magnetic flux
D. self-inductanceThe maximum efficiency of resistance loaded class A power amplifier is _________________?
The maximum efficiency of resistance loaded class A power amplifier is _________________?A. 5%
B. 50%
C. 30%
D. 25%The resistivity of a pure silicon is about _______________?
The resistivity of a pure silicon is about _______________?A. 100 O cm
B. 6000 O cm
C. 3 x 105 O m
D. 6 x 10-8 O cmemf induced in a circuit according to Faradays law depends on the_____________?
emf induced in a circuit according to Faradays law depends on the_____________?A. maximum magnetic flux
B. rate of change of magnetic flux
C. change in magnetic flux
D. initial magnetic flux