Question # 1

B2/2p is the expression of.

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Lenz's law

Magnetic energy

Magnetic energy density

Back emf

Soft magnetic material is

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Sodium

Steel

Iron

Copper

The value of Rydberg constant is:

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1.0749x10⁷m^-1

1.0974 x 10⁷ m^-1

1.974 x10⁶m^-1

1.0974 x 10^-7 m^-1

In Helium Neon laser, discharge tube is filled with Neon gas.

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10%

15%

85%

90%

The Lenz's law is also statement of:

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Law of conservation of mass

Law of conservation of charge

Law of conservation of energy

Law of conservation of momentum

The Si unit of Mutual inductance is:

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VA^-1S^-1

VAS^-1

VSA^-1

ASV^-1

The electric field lines are closer where the field is

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Strong

Weak

Uniform

Variable

The mass spectrum of naturally occurring neon, showing

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1 isotope

2 isotope

3 isotope

4 isotope

In the Bohr's model of the hydrogen atom, the lowest orbit corresponds to:

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Infinite energy

Maximum energy

Minimum energy

Zero energy

X₁is low for low frequency Fy but Xc is.

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Zero

Low

High

Same is H

The reverse saturation current in a PN junction diode is only due to:

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Majority carriers

Minoritycarriers

Acceptor ions

Donor ions

The A.M. transmission frequencies range from

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540 KHz to 1000 KHz

540 Khz to 1600 KHz

520 KHz TO 1600 KHz

520 KHz TO 1400 KHz

Impedance is denoted by:

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A

Z

P

Q

Kirchhoff's first rule is the manifestation of the law of conservation of.

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Mass

Charge

Energy

Momentum

Domains are existed in

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Ferromagnetic materials

Paramagnetic materials

Semi conductors

Diamagnetic materials

The radioactive decay obeys the law

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Choke consumes extremely small

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Current

Charge

Power

Potential

The concept of direction is purely

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Relative

Absolute

Relative to the motion

None of these

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Physics Fsc Part 2 Online Test MCQs With Answers

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