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WorksheetsMAGNETIC EFFECTS OF CURRENT
Total questions: 15
Worksheet time: 8mins
Magnetic effect of electric current was invented by
Coulomb
Oersted
Joule
The given circuit is an example of __________ effect of electric current
Magnetic effect
Heating effect
Chemical effect
The magnetic strength of a conductor decreases with the increase in current
True
False
None of the above
The magnetic field lines are__________.
closed curves
open curves
semi circular
Fuse wire has high melting point. True or False:
True
False
May be false
May be correct
Where is Earth's magnetic field the strongest?
poles
equator
mountain tops
ocean floor
Nichrome contains
20% nickel 80% chromium
80% nickel 20% chromium
40 % chromium 60% zinc
The heating effect of an electric current is used in
Hair dryer
A fan
A computer
When current is switched on in an electric bell, it converts _______ energy into _______ energy.
Electrical, light
Electrical, sound
Electrical, heat
Mechanical, sound
Magnetic field produced by a current carrying wire at a given point depends directly on _________
Electricity
Electric current
Magnetism
Strength of magnetic field
What is full form of MRI?
Magnetic Radiology Imaging
Magneto Ray Idometry
Medical Radiometer Instrument
Magnetic Resonance Imaging
A :- Magnetic field produced
our body is very weak
R :- and it is about one
Billionth of earth's magnetic field
Both A and R are correct and R is correct explaination of A
Both A and R are correct but R is not correct explaination of A
A is true but R is false
Both A And R are false
What is formula for magnetic field?
Tesla meter/Ampere
Tesla meter/Volts
Tesla ampere/meter
Tesla meter/second
Dynamo works on the principle of
Electro magnetic induction
Conversion of energy to electricity
Magnetic effects of electric current
Heating effects of current
The pattern of the magnetic field generated by a current
carrying conductor depends on ______
Magnitude of Current
Geometry of Conductor
Material of Conductor
All of these
