Question # 1

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

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Sensitive

Accurate

Stable

None of these

The magnetic field outside the solenoid due to current is

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strong

zero

weak

uniform

if the field is directed along the normal to the area, then flux is:

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Maximum

Equal to zero

Equal to BA

Minimum

Both (A) and (C)

The sources of magnetic field are

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isolated magnetic poles

charges at rest

charges in motion

none of these

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

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Greater than 300

Smaller than 300

Equal to 300

Any of (A) or (B)

Any of (A) or(C)

A resistance used in galvanometer to make it voltmeter is called

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shunt resistance

high resistance

zero resistance

none of these

Ammeter is used to measure

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voltage

resistance

voltage and current

current

A voltmeter is used to measure the

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potential difference

current

temperature

resistance

The field around a moving charge is called

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magnetic field

conservative field

non-conservative field

none of these

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

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Thumb

Curled fingers

Middle finger

Arm of right hand

None of these

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

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Maximum

Minimum

Zero

Very small

None of these

Lorentz force is defined as

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q(E + V x B)

q(E x B + V)

q(E x V + B)

q(E x B)

The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the

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magnetic flux

magnetic induction

magnetic field

self inductance

A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called

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dead beat galvanometer

stable galvanometer

shunt galvanometer

sensitive galvanomter

The unit of flux density is also given by

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Weber/m²or Wb . m^-2

Weber/mor Wb . m

Weber/mor Wb . m^-1

Weber or Wb

Current is measured in

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volts

watt

ohm

ampere

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