
EMI (Lenz's and. Faradays Law)
Authored by Mukul Kumar
Physics
12th Grade
NGSS covered
Used 77+ times

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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
1. In electromagnetic induction, the induced e.m.f. in a coil is independent of
Change in the flux
Time
Resistance of the circuit
None of the above
Tags
NGSS.HS-PS2-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
Lenz's law is consequence of the law of conservation of
Charge
Momentum
Mass
(d) Energy
3.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
The magnetic flux linked with a coil is given by an equation flux (in webers) = . The induced e.m.f. in the coil at the fourth second will be
16 units
39 units
67 units
145 units
Tags
NGSS.HS-PS2-5
NGSS.HS-PS3-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
A square coil area is placed perpendicular to a uniform magnetic field of intensity . The magnetic flux through the coil is
10 weber
weber
weber
100 weber
5.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
The direction of induced e.m.f. during electromagnetic induction is given by
Faraday's law
Lenz's law
Maxwell's law
Ampere's law
Tags
NGSS.HS-PS2-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
Which action will increase the deflection of the galvanometer pointer?
The magnetic pole is reversed
The number of turns of coils is increased
The coil is made from insulated wire
The magnet is slowly pushed into the coil
Tags
NGSS.HS-PS2-5
NGSS.HS-PS3-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
A coil having 500 square loops each of side 10 cm is placed normal to a magnetic flux which increases at the rate of 1.0 tesla/second. The induced e.m.f. in volts is
0.1
0.5
1
5
Tags
NGSS.HS-PS2-5
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