ENTRANCE TEST – 2017 Multiple Questions and Answers.




16.Themagnetic flux linked with a solenoid of area'A',having'N'turns at right angle to magnetic field is:
A. NBA
B. BA
C. 1/2NBA
D. BAcos(theeta)

17.A charge projected with velocity of 10m/sin a magnetic fiels of10Tat an angle of60°,if force exerted on charge is2.78x10–17N,then value of charge is
A. 1.6x10–19C
B. 2.7x10–19C
C. 3.2x10–19C
D. 4.8x10–19C

18.Aloop of 5 turn so wire is placed in uniform magnetic field of0.5T,then area of loop shrink sat a constant rate of 10m²/s,theem find uced is:
A. 2.5V
B. 25V
C. 250V
D. 0.25V

19.The phase at negative peak of AC voltage is:
A. LÏ€/2
B. π
C. 3Ï€/2
D. 2Ï€/3

20.A1.25cm diameter cylinder is subjected to load of 2500kg,stress on bar is:
A. 200 Pa
B. 2x105 Pa
C. 2x106 Pa
D. 2x109 Pa

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