MCAT — Quiz

MCAT Physics Mcq Questions Electromagnetic Induction

50 questions · Test your knowledge

1 Potential difference is the work done in moving unit positive charge form one point to another
2 Equipotential planes are
3 The value of the capacitance depends upon the
4 A 25eV electron has a speed of
5 A 5 ?F capacitor has a potential difference across its plates of 200 volts. The charge on the capacitor is
6 capacitor is to have an energy content of 20J it must be placed across a potential difference of
7 Equivalent capacitance is greater than individual capacitances in
8 Two oppositely charged balls A and B attract third conducting ball C when placed near them turn by turn. Then ball C must be
9 The number of electrons in one coulomb charge is equal to
10 In a non-uniform electric field a polar molecule will experience
11 SI unit of permitivity of free space is
12 Value of ?r for various dielectrics is always
13 Electric intensity at infinite distance from the point charge is
14 Which one of the following can be taken as the measure of electric intensity ?
15 Electric flux due to a point charge +q is
16 N/C =
17 A charge of 0.10C accelerated through a potential difference of 1000V acquires kinetic energy
18 A capacitor is a perfect insulator for
19 Three capacitors C1 C2 and C3 are connected in parallel as in the Fig. The equivalent capacitance will be
20 In a charged capacitor the energy resides in
21 For what value of ? the electric flux has average value of those of extreme values ?
22 Electric field due to positive charged plate is E = ?/2??. If oppositely charged plate of same amount is placed parallel to it, then resultant field contains amount of energy
23 Work done in moving a point charge from one point to another point of equipotential surface is
24 Selenium becomes a conductor in light so it behaves like
25 Photocopier and inject printer are dealt in
26 If a charged rod is brought closer to a gas filled balloon then
27 If metallic conductor is charged negatively then its weight
28 If mica sheet is placed between the plates of a capacitor the capacity
29 If two charges are increased by two times then force
30 If an electrons is allowed to move along the field in a non uniform electric field then it will follow
31 The practical illustration of the phenomenon of mutual induction is
32 Weber is the unit of
33 Current produced by moving the loop of wire across a magnetic field is called
34 emf induced in a circuit according to Faradays law depends on the
35 cmf generated by A.C dynamo depends upon
36 An alternating current or voltage
37 A dynamo converts
38 Which one of the following functions like a motor?
39 A.C cannot be used for
40 Which of the following works on torque on the current carrying conductor placed in magnetic field.
41 Self inductance of a coil depends upon
42 If the coil is wound on an iron core the flux through it will
43 Energy stored in a magnetic field is given by
44 Inductors acts as a short circuit for
45 For electroplating we use
46 Which of the following uses electric energy and does not convert it into any other form?
47 The only difference between construction of D.C generator and A.C generator is that of
48 A.C and D.C have the same
49 If the secondary coil has Ns turns and the primary Np turns the relation between secondary and primary voltages is given by
50 Power loss in actual transformer is due to
Back to All Quizzes