Question # 1

When Ohm meter gives full scale deflection it indicates.

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Zero resistance

Infinite resistance

Small resistance

Very High resistance

A current carrying conductor experience maximum magnetic force in a uniform magnetic field when it is placed.

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Perpendicular to field

Parallel to field

At an angle of 60 ^o to the field

None of these

When a charge is projected perpendicular to a uniform magnetic field, tis path is

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Spiral

Helix

Ellipse

Circular

The unit of Magnetic flux is called.

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weber

weber/m²

NM^-1A^-1

None of above

Which one of the following resistance is used to convert a Galvanometer into an ammeter.

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High resistance

Low resistance in series with galvanometer

Shunt

High resistance in series with galvanometer

The anodes in cathode ray oscilloscope.

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Control number of waves

Control brightness of sept formed

Accelerate as well as focus beam

Negative potential w.r.t to chithode

The permeability of free space is measured in

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wb A/m

Am/wb

wb/Am

m/wbA

Magnetic flux density is measured in

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Weber

Weber/m2

Tesla -m

Gauss

A galvanometer is an electrical instrument used to

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Measure resistance

Measure voltage

Detect passage of current

None of these

The SI unit of flux density is.

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NA-1 m2

NA-1 m-1

NAm-1

NA-1 m

If the length and number of turns of a solenoid are doubled strength of magnetic field with.

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Be doubled

Become half

Not change

Be four time

The e/m of a neutron is

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Less than electron

The same as electron

Zero

Greater than election

A soft iron cylinder is placed inside coil galvanometer to:

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Make field circular and strong

Make field radial and weak

Make field radial and strong

All of above

___ is correct relation.

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IT = 10^-4G

IT = 10⁴ G

IT = 10² G

IT = 10^-2 G

An ammeter is an electrical instrument which is used to measure.

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Voltage

Current

Resistance

None

The magnetic field inside solenoid is given:

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μ_∘nI²

μ_∘nI

μ_∘n/1²

μ_∘I/n

Ampere's law is applicable to:

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Circular path

Rectangular path

To any closed path

Nonwe of these

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