Physics Magnetism and Electromagnetism Online Quiz Test MCQs

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Physics Magnetism and Electromagnetism Online Quiz Test MCQs

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Physics

1. The permeability of free space is measured in:

Wb/Am

Am/Wb

Wb A/m

m/ Web A

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Question 1 of 15

2. When the ohmeter measures the infinite resistance, its pointer lies at:

Right end of the scale

Centre of the scale

Left end of the scale

Right quarter portion of the scale

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Question 2 of 15

3. An avometer can be used to act as ammeter, voltmeter or ohmmeter with the help of:

Function selector switch

Range selection switch

Function selector switch and CRO

CRO

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Question 3 of 15

4. When some compass needles are placed on a card board along a circle with the centre at the wire, they will:

Point in the direction of E-W

Point in the direction of N-S

Set themselves tangential to the circle

Point in the direction of S-E

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Question 4 of 15

5. The direction of magnetic lines of force around a current carrying wire is given by:

Head to tail rule

None of these

Faraday's law

Right hand rule

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Question 5 of 15

6. Amperean path is a:

Closed path

Any of above

Rectangular path

Circular path

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Question 6 of 15

7. Magnetic field is as:

Scalar as well as vector quantity

Vector quantity

Scalar quantity

None of these

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Question 7 of 15

8. The resistance of the shunt is:

Large

Very large

None of these

Very small

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Question 8 of 15

9. Magnetic lines of force:

Intersect at infinity

Cannot intersect at all

Intersect at neutral points

Intersect within magnet

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Question 9 of 15

10. Magnetic flux density at any point due to current carrying conductor can be computed by:

Lenz's law

Faraday's law

Newton's law

Ampere's law

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Question 10 of 15

11. Strength of magnetic field is measured in SI units, in:

N/Am

N

Nm/A

Am/N

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Question 11 of 15

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

Arm of right hand

Middle finger

Thumb

Curled fingers

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Question 12 of 15

13. n avometer measures:

All of these

A.C. voltages only

Currents only

D.C. voltages only

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Question 13 of 15

14. An avometer can measure:

Any of these

Resistance in ohms

Potential difference in volts

Current in amperes

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Question 14 of 15

15. A current is passed through a straight wire. The magnetic field established around it has its lines of force:

Circular and endless

Parabolic

Oval in shape and endless

Straight

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Question 15 of 15

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