Question # 1

The sum of electric and magnetic force is called.

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Maxwell force

Lorentz force

Newton's force

Centripetal force

The force on a charge particle moving parallel to magnetic field is:

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Maximum

Minimum

Zero

None of these

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

The sensitivity of galvanometer is given by

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CAN/B

C/BAN

BAN/C

BN/CA

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 galvanometer can be made sensitive by making the factor BAN/C

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Large

Small

Constant

Zero

Magnetic induction can be measured in units of.

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Tesla

Gauss

Weber/m2

All of the above

If a low resistance is connected parallel to a galvanometer then galvanometer is converted.

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Ammeter

Voltammeter

Ohmmeter

Multimeter

The dimensions of magnetic flux are

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M¹L^-2T¹A¹

MLT^-2A^-1

ML²T²A^-1

ML²T^-2A^-1

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

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 charged particle enters in a strong magnetic field its K.E.

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Remain constant

Increases

Decreases

Increases then decreases

A Current flowing towards the reader is denoted by.

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Cross

a bracket

A dot

Positive sign

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

A positive charge is moving towards an observer, The direction of magnetic induction will be.

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Toward right

Anti clockwise

Clockwise

Toward left

When Ohm meter gives full scale deflection it indicates.

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Zero resistance

Infinite resistance

Small resistance

Very High resistance

Current passing through the coil of galvanometer

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CO/BAN

CoN /BA

NAB/CO

AN/BCO

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