Generators With Slip Rings Produce Sinusoidal AC (VCE SSCE Physics): Quizzes
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Practise the questions
10 questions from this quiz
What is the theoretical maximum efficiency for extracting energy from wind (Betz limit)?
What is the theoretical maximum efficiency for extracting energy from wind (Betz limit)?
59%
What is the key function of slip rings in an alternator?
What is the key function of slip rings in an alternator?
Maintain continuous connection to coil
What determines whether a generator produces DC or AC output?
What determines whether a generator produces DC or AC output?
Use of slip rings vs split ring
When is magnetic flux through the coil at maximum or minimum?
When is magnetic flux through the coil at maximum or minimum?
When coil plane perpendicular to field
According to Faraday's law, induced EMF is proportional to what?
According to Faraday's law, induced EMF is proportional to what?
Rate of change of magnetic flux
When is the induced EMF at its maximum value?
When is the induced EMF at its maximum value?
When magnetic flux is zero
What happens to output EMF if magnetic field strength is doubled?
What happens to output EMF if magnetic field strength is doubled?
EMF doubles
What happens to output voltage if the number of turns is doubled?
What happens to output voltage if the number of turns is doubled?
Voltage doubles
What are the two effects of doubling the rotation speed?
What are the two effects of doubling the rotation speed?
Doubles amplitude and doubles frequency
If coil area is tripled, what happens to the induced EMF?
If coil area is tripled, what happens to the induced EMF?
EMF triples