Question # 1

A charged particle moving at right angle to the magnetic field will experience

Choose an answer

minimum force

maximum force

zero

moderate force

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

The voltage increases linearly with

Choose an answer

time

velocity

acceleration

torque

The unit of flux density is also given by

Choose an answer

Weber/m²or Wb . m^-2

Weber/mor Wb . m

Weber/mor Wb . m^-1

Weber or Wb

The galvanometer can be made sensitive if the value of the factor C/BAN is

Choose an answer

constant

small

large

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

Which one of the following relations is correct?

Choose an answer

1 Wb-m²= Nm^-1A^-1

1 tesla = 104 gausses

1 Wb-m²= 1 tesla

All of the above

The vector representation of force experience give the direction of

Choose an answer

magnetic field

current

length of conductor

force

In a straight current carrying conductor, the direction of magnetic field can be found by

Choose an answer

right hand rule

left hand rule

head to tall rule

none of these

Avo-meter is used of measure the

Choose an answer

current, voltage

voltage, resistance

resistance, current

current, voltage and resistance

The SI unit of flux density is.

Choose an answer

Tesla

Weber

Gaun

Weber/meter

The SI unit of flux density is

Choose an answer

Newton/Amp-meter

Newton-m/Ampere

Newton-m/Amp²

Newton-Amp/meter

The torque per unit twist of coil is called

Choose an answer

proportionality constant

gravitational constant

boltzman constant

coupling constant

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

Choose an answer

Circular and endless

Oval in shape and endless

Straight

Parabolic

All are true

Centripetal force for electron is given by

Choose an answer

mv²/ r

mv / r²

mv²/ r

mr²/ v

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)

More Classes

Other Links

Physics ECAT Pre Engineering 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