Question # 1

For the conversion of galvanometer into voltmeter, we connect a

Choose an answer

small resistance in series with galvanometer

small resistance in parallel with galvanometer

high resistance in parallel with galvanometer

high resistance series with galvanometer

The vector representation of force experience give the direction of

Choose an answer

magnetic field

current

length of conductor

force

Current is measured in

Choose an answer

volts

watt

ohm

ampere

The sources of magnetic field are

Choose an answer

isolated magnetic poles

charges at rest

charges in motion

none of these

Amperean path is a:

Choose an answer

Closed path

Rectangular path

Circular path

Any of above

Broken path

Magnetic lines of force:

Choose an answer

Cannot intersect at all

Intersect at infinity

Intersect within magnet

Intersect at Neutral Point

None of these

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

Choose an answer

Maximum

Equal to zero

Equal to BA

Minimum

Both (A) and (C)

The angle of deflection of coil can be measured by the

Choose an answer

one method

three method

two method

none of these

A voltmeter is used to measure the

Choose an answer

potential difference

current

temperature

resistance

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

Choose an answer

dead beat galvanometer

stable galvanometer

shunt galvanometer

sensitive galvanomter

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Choose an answer

F=IB/L

F= L x B/I

F = IL x B

F = IL . B

When some compass needles are placed on a card board along a circle with the center at the wire, they will

Choose an answer

Point the direction of N-S

Set themselves tangential to the circle

Point in the direction of E-W

None of these

Point in direction of S-E

Lorentz force is defined as

Choose an answer

q(E + V x B)

q(E x B + V)

q(E x V + B)

q(E x B)

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

Choose an answer

Sensitive

Accurate

Stable

None of these

The strength of magnetic field around the current conductor is

Choose an answer

Smaller near the conductor

Greater near the conductor

Greater at the large distance from the conductor

Constant near and away from the conductor

A full-scale deflection is obtained in a galvanometer with a current of few

Choose an answer

ampere

volts

milliampere

ohm

More Classes

Other Links

ECAT Physics Chapter 14 Electromagnetism Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer