Electromagnetic Induction Mocktest Mhtcet

Electromagnetic Induction(Physics) Mocktest for Mhtcet. The Mocktest on Electromagnetic Induction for Mhtcet is designed to help students prepare for the Physics Subject of the entrance exam. It features a combination of multiple-choice questions, so that students can get a better understanding of the topics and concepts related to Electromagnetic Induction. This Mocktest is also designed to provide an insight into the type of questions that can be expected from the Mhtcet exam. The problems cover a range of topics from Faraday’s Laws of Electromagnetic Induction to Transformer and Mutual Inductance, enabling students to gain a comprehensive understanding of the subject matter. Electromagnetic Induction Mocktest Mhtcet.

Here are the Subtopics of the Electromagnetic Induction(Physics) for MHTCET Exam 2023.

Faraday’s Laws of Electromagnetic Induction
Lenz’s Law
Flux of the Field Motional Electromotive Force
Induced emf in a Stationary Coil in a Changing Magnetic Field Generators
Back emf and back torque Induction and Energy Transfer
Eddy Currents
Self-Inductance
Energy Stored in a Magnetic Field
Energy Density of a Magnetic Field
Mutual Inductance (M)
Transformer

Results

#1. When a bar magnet is placed in a uniform magnetic field, it expreiences.

only force.

only torque.

both force and troque

no force, no torque.

#2. There is no couple acting when two bar magnets are placed coaxially separated by a distance because.

there are no forces on the poles.

the forces are parallel and their lines of acting do not coincide.

the forces are perpendicular to each other.

the forces at along the same line.

#3. According to faraday's laws of electromagnetic induction,

The direction of induced current is such that it opposes the cause producing it

The magnitude of induced emf produced in a coil is directly proportional to the rate of change of magnetic flux

The magnetic flux linked with a current carrying coil is given

None of the above

#4. Faraday's law is the consequence of conversation of

Energy

Energy and magnetic field

Charge

Magnetic field

#5. Whenever the magnetic flux linked with a coil changes and induced e.m.f is produced in the circuit this e.m.f is present

For a short time

For a long time

So long as the change influx takes place

Forever

#6. If the magnetic field linked with the coil is reduced to half, the e.m.f induced in the coil will be_____.

Half

Shame

Double

4 times

#7. If the flux associated with a coil changes at the rate of 240 Weber in every 2 minutes, then the induced e.m.f is

2 Volt

0.20 Volt

3 Volt

6 Volt

#8. Lenz's law provides relation between

Current and magnetic field

Induced e.m.f and the magnetic flux

Force on a conductor in magnetic field

Current and induced e.m.f

#9. Lenz's law obeys the principle of_______ conversation

Charge

Momentum

Mass

Energy

#10. Magnetic flux is

Total charge per unit area

Total current through a surface

Total number of magnetic field lines passing normally through given area

Total e.m.f in enclosed circuit

#11. If rotational velocity of a Dynamo armature is doubled ,the induced e.m.f will become

Half

2 times

4 times

Unchanged

#12. When the speed of a D.C motor increases the armature current

Increases

Decreases

Does not change

Increases and decreases continuously

#13. The output of Dynamo using splitting commutators____.

D.C

a.c

Fluctuation D.C

Half-wave rectified voltage

#14. Which of the following statement is incorrect?

Both AC and DC Dynamo have a failed magnet

Both AC and DC Dynamo have an armature

Both AC and DC Dynamo convert mechanical energy into electrical energy

Both AC and DC Dynamo have slip rings

#15. Eddy currents are also known as ______currents

Alternating

Focault

Direct

peak

#16. Which one of the following devices is not based on Eddy currents?

Induction furnace

Electric brakes

Tangent galvanometer

Dead beat galvanometer

#17. If you know a galvanometer the coil is wound on a bad conductor, the add current will be

Zero

Speedometer

Minimum

Galvanometer

#18. which of the following is an application of eddy currents?

Lux meter

Speedometer

Exposure meter

Galvanometer

#19. Core of a Dynamo is laminated because

Magnetic field increases

Efficiency decreases

Residual magnetism in core decreases

Loss of energy in core due to Eddy current decreases

#20. Eddy currents do not produce_____.

Heat

Loss of energy

Spark

Damping of motion

Finish

DOMOCKTEST