ECAT Pre Engineering Physics Chapter 14 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Question # 1

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

Question # 2

The e/m of an electron moving in a circular path in a magnetic field is equal to

Question # 3

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

Question # 4

NmA-1 is commonly called:

Question # 5

The unit of flux density is also given by

Question # 6

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 7

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

Question # 8

The vector representation of force experience give the direction of

Question # 9

When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is

Question # 10

In the formula B= µ̻ nl, the symbol n denotes:

Question # 11

The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Question # 12

Galvanometer is a device used for the detection of

Question # 13

For the conversion of galvanometer into voltmeter, we connect a

Question # 14

The working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 15

A shunt resistance parallel to the galvanometer is used to convert it into

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
2 A field is uniform and much stronger:
A.

Inside a long solenoid

B.

Outside a long solenoid

C.

At the end of a long solenoid

D.

At the central point of long solenoid
3 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
4 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
5 The current is measured in
A. volts
B. watt
C. ampere
D. ohm
6 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
7 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these
8 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
9 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
10 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these

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