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WorksheetsMethods of producing induced emf
Total questions: 17
Worksheet time: 13mins
The production of electric current by a changing magnetic field is called ____________________________________.
induced current
electromotive force
electromagnetic induction
internal resistance
In Fleming's Right Hand Rule, First finger and center finger represent
current, magnetic field
magnetic field, current
force, current
magnetic field, force
Faraday’s Law states that the magnitude of the induced e.m.f. is _________________ to the rate of change of magnetic flux linkage with the solenoid.
equal
inversely proportional
directly proportional
No EMF is induced when?
When the wire is not moving
When the wire is parallel to magnetic field direction
When no lines are cut by the wire
all of the above
A conducting bar of length L is sliding with a constant velocity V along two conducting rails in the presence of a uniform magnetic field directed into the page. According to Faraday’s law, the emf induced across the ends of the bar is due to
The resistance of the circuit
The change in magnetic field strength
The change in the enclosed area in the magnetic field
The change in the current
Summary of the given simulation
Only motion of magnet induce emf
Only Motion of coil induce emf
Relative motion between coil and magnet induce emf
without any movement between them we can get induce emf
Magnetic flux depends on
Magnetic Field
Area
Angle between Magnetic Field and Area Vector
All of the above
in a closed circuit, electric currents are induced so as to oppose the changing magnetic flux as per
Law of conservation of mass
Law of conservation of charge
Law of conservation of energy
Law of conservation of current
What does this symbol represent
Direct Current
Damping Current
Dancing Current
Alternating current
Current is maximum in AC generator when
Area Vector is parallel to magnetic field
Area Vector is Antiparallel to magnetic field
Area Vector is 120 degree with magnetic field
Area Vector is Perpendicular to magnetic field
Magnetic field lines point....
South to North
out of the north and south pole
North to south
into the north and south pole
