IIT JEE Questions And Answers :: Electromagnetic Induction Electromagnetic Waves: part1



IIT JEE : Electromagnetic Induction Electromagnetic Waves QUESTIONS AND ANSWERS :: part1 : 16 to 20

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :

16.A fully charged capacitor is allowed to discharge through an inductor of 0.5 mH. The initial current through the inductance rises from 0 to 1.5 A in 2.5�s. The instantaneous voltage across it is:

75 V
125 V
300 V
1875 V

17.In an electromagnetic wave, the average energy density is associated to:

electric field only
magnetic field only
equally with electric and magnetic fields
average energy density is zero

18.The nature of electric field in the region between the two plates of a capacitor, while charging, is:

always constant
varying
depends on value of C and R
depends on emf of battery

19.Which one of the following can produce maximum induced emf?

50 A DC
50 A 50 Hz AC
50 A 500 Hz AC
100 A DC

20.An output voltage of E = 170 sin 377t is produced by an AC generator, where t is in sec, then the frequency of alternating voltage will be:

50 Hz
110 Hz
60 Hz
230 Hz

More Electromagnetic Induction Electromagnetic Waves QUESTIONS AND ANSWERS available in next pages

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