For which of the following ‘ampere second’ could be the unit?
A. Reluctance
B. Charge
C. Power
D. Energy
Category: Engineeeing Mcqs
Which of the following materials has a negative temperature co-efficient of resistance?
A. Copper
B. Aluminum
C. Carbon
D. Brass
The S.I. unit of power is __________?
A. Henry
B. coulomb
C. watt
D. watt-hour
A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is __________?
A. 6.4 A, 6.9 A
B. 6.4 A, 9.6 A
C. 4.6 A, 6.9 A
D. 4.6 A, 9.6 A
A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is __________?
A. 400 Q
B. 600 Q
C. 800 Q
D. 1000 Q
The resistance of a copper wire 200 m long is 21 Q. If its thickness (diameter) is 0.44 mm, its specific resistance is around __________?
A. 1.2 x 10~8 Q-m
B. 1.4 x 10~8 Q-m
C. 1.6 x 10″”8 Q-m
D. 1.8 x 10″8 Q-m
Out of the following which is an insulating material?
A. Copper
B. Gold
C. Silver
D. Paper
Polarimeter works on the principle of_____________?
A. polarisation of light
B. change of the electrical conductivity of solution with composition
C. change of angle of refraction with composition
D. change of electrical conductivity of solution with temperature
The slope of constant pressure line on temperature entropy diagram is given by________________?
A.S/T
B.T/S
C.Cp/T
D.T/Cp
E.90?
Which of the following is not the characteristics of human wants ?
A.Some wants are complementary
B.Wants differ intensity
C.Wants are limited in number
D.Wants are satisfied for the time being and are, therefore recurrent
