Question # 1

If current flowing through a solenoid becomes four times, then magnetic field inside becomes.

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two times

three times

four times

Half

A Current flowing towards the reader is denoted by.

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Cross

a bracket

A dot

Positive sign

___ is correct relation.

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IT = 10^-4G

IT = 10⁴ G

IT = 10² G

IT = 10^-2 G

The dimensions of magnetic flux are

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M¹L^-2T¹A¹

MLT^-2A^-1

ML²T²A^-1

ML²T^-2A^-1

The sensitivity of galvanometer is given by

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CAN/B

C/BAN

BAN/C

BN/CA

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

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Voltage

Current

Resistance

None

μ_∘(Ampere's constant) has value.

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4πx10^-7 WbA^-1m^-1

4πx10^-17 Wbm²

4πx10⁷ WbA^-1m^-1

4πx10-27 Wb/m²

Useful device to measure resistance, current and voltage is an electronic instrument called.

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Volt meter

Ammeter

Ohmmeter

Digital Multimeter

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

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Spiral

Helix

Ellipse

Circular

One weber is equal to:

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N.A ²/m

N.m²/A

N.A/m

N.m/A

The SI unit of flux density is.

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NA-1 m2

NA-1 m-1

NAm-1

NA-1 m

Grid in cathode ray oscilloscope controls.

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Number of electron

Temperature of filament

Frequency of electron

Energy of electrons

The vector sum of electric force and magnetic force is called:

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Deflecting force

Lorentz force

Newton force

Faraday's force

The effective way to increase the sensitivity of moving coil galvanometer is.

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Increase the area of coil

Increase the number of turn

Increase the magnetic field

Increase the value of constant C

Torque is produced in a current carrying coil when it is placed in a

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Magnetic field

Electric field

Gravitational field

Nuclear field

The magnetic flux will be max, For an angle of:

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0°

60°

90°

180°

Energy stored per uint volume inside a solenoid is called as

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energy density

Electric flux

Work

Volume charge density

A charged particle having charge 'q' is moving at right angle to magnetic field. The quantity which varies is.

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Speed

Kinetic energy

Path of motion

angular velocity

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