Question # 1

The vessel containing the tow electrodes and liquid to known as.

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Chemical cell

Volt cell

Volta cell

Volta meter

For normal use:

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Emitter base function is reversed biased

Collector base junction is reserved biased

Emitter base junction is forward biased

Both c and b

In frequency modulation, the amplitude of carrier waves is

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Increases

Remains constant

Decreases

None of these

The free electrons experience force.

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In direction of -E

In direction of E

Both A and B

All of the above

Which of the following has least hysteresis loop area.

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Steel

Wrought Iron

Soft Iron

Cobalt

For a current carrying solenoid the term 'n' has unit as.

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No unit

m^-1

m^-2

m-3

If D.C. input for step up transformer, the output is

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Zero

High

Low

May be high or low

A resistance frequency the impedance of RLC parallel circuit is.

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Zero

Infinite

Maximum

Minimum

A dot represents the direction of magnetic field.

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Out of page

Into the page

Tangent to page

Parallels to page

GM counter uses

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Alcohol only

Bromine

argon

Neon and bromine

X₁is low for low frequency Fy but Xc is.

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Zero

Low

High

Same is H

Yield stress is another name of

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Plasticity

Proportional limit

Elastic limit

Both (b) and (c)

Write the SI unit of magnetic flux.

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Tesla

Weber

Weber m-2

Tesla m2

The electric field in some region of of space is uniform in magnitude and direction. Which one of the following five statements best desccribes the volume charge density (ρ) , in this region of space?

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ρ = 0

ρ decreases linearly in the direction of the electric field

ρ increases linearly in the direction of the electric field

ρ has a uniform value throughout the region

If the north pole of a magnet moves away from a metallic ring

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Clockwise

Anticlockwise

First clockwise and then anticlockwise

None of above

The unit of Rh is.

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ms-1

m

m²

m^-1

Which consumes small power.

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Inductor

Resistor

Motor

All of these

Gamma rays from cobalt -60 are used for treatment of.

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Circulation of blood

Cancer

Heart Attack

Thyroid glands

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