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FSC Part 2 Physics
Chapter 15 Test
Start Chapter 15 Test
FSC Part 2 Physics Chapter Wise Test
(English Medium)
MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 15 Online MCQ's Test"
Try The MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 15 Online MCQ's Test"
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Total Questions17
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Time Allowed20
Physics FSC Part 2 Chapter 15 Online MCQ's Test
00:00
Question # 1
A simple device that prevents the direction of current from changing is called.
Question # 2
A current generator device converts:
Question # 3
When the back emf is zero, its draws.
Question # 4
One henry is equal to
Question # 5
DC generator by william Sturgeon in:
Question # 6
Eddy current is produced when:
Question # 7
The Lenz's law fulfils.
Question # 8
Self induction does not depend on
Question # 9
Mutual induction play role in.
Question # 10
Which of the following converts electrical energy into mechanical energy.
Question # 11
Lenz's law is a consequence of the law of conservation of
Question # 12
The working principle of transformer is.
Question # 13
A step up transformer is used 120 V line to provide 240 V. If primary coil has 100 turns the number of turns is secondary is.
Question # 14
In D.C. generator, split rings act as.
Question # 15
When a coil is moved in a uniform magnetic field, an induced emf is produced due of change in
Question # 16
The device in the circuit that consume electrical energy are known as.
Question # 17
The movement of conductor in magnetic field produces electrical current was discovered in:
FSC Part 2 Physics Chapter 15 Online Test MCQ's
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FSc Part II Physics Chapter 0 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Unit of self inductance is |
A. Weber
B. Tesla
C. Henry
D. Farad
|
| 2 | The induced emf in a coil is proportional to: |
A. Magnetic flux through the coil
B. Rate of change of Magnetic flux through the coil
C. Area of the coil
D. Product of magnetic flux flux and area of the coil
|
| 3 | The emf induced by the motion of a conductor across a magnetic field is called: |
A. Motional emf
B. Rotational emf
C. Induced emf
D. All of above
|
| 4 | If a step up transformer were 100% efficient the primary and secondary winging's would have the same. |
A. Current
B. Power
C. Voltage
D. Direction of winding
|
| 5 | The current induced can be increased by: |
A. Using a stronger magnetic field
B. Moving the loop faster
C. Replacing the loop bay coi of many turns
D. All of above
|
| 6 | For inducing emf in a coil the basic requirement is that: |
A. Flux should link the coil
B. Change in flux should link the coil
C. Coil should form a closed loop
D. Both (b) and (c) are true
|
| 7 | Energy density of an inductor is: |
A. UM=1/2μ∘/B2
B. Um = 2μ∘/B
C. UM = 1/2B2/μ∘
D. Um = 2B2/μ∘
|
| 8 | When a conductor moves across a magnetic field an emf is set up this emf is called. |
A. Variable emf
B. Constant emf
C. Back emf
D. Induced emf
|
| 9 | Commutator was invented in |
A. 1834
B. 1820
C. 1840
D. 1835
|
| 10 | Commentator was invented by |
A. Henry
B. Ousted
C. Maxwell
D. William sturgeon
|
Test Questions