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Why a dc generator you unable to generate emf even its armature is rotating?
bad connection
What are the factors causing a permanent magnet generator not to generate emf?
A magnetic field will not generate an EMF if there is no motion, so the primary factor causing a permanent magnet generator to not generate EMF is if it is not turning.
How are emf measured?
emf in volts
Does motional emf call induced emf?
yes indused emf is also called motional emf. If an open coil is subjected to a variable magnetic field, at the ends of the coil a potential difference is induced which is called induced emf. If a coil is connected to an emf source and switched on, the rising current will produced an variable magnetic field which in turn produces an emf. It is called back emf.
Frequency of emf generated per rotation of rotor is equal to?
The frequency of emf generated per rotation of the rotor depends on the number of poles on the rotor and on the field. Please restate your question. For the two pole / two pole case, an atypical configuration, but good for illustration, 3,600 RPM would generate 60 Hz.
What does an electrical wire moving through a magnetic field generate?
EMF in the wire.
Why a dc generator you unable to generate emf even its armature is rotating?
bad connection
How do you generate electricity from a turbine?
A wire moving in a magnetic field will automatically produce an emf (a voltage).
What are the factors causing a permanent magnet generator not to generate emf?
A magnetic field will not generate an EMF if there is no motion, so the primary factor causing a permanent magnet generator to not generate EMF is if it is not turning.
How many ways to generate electricity in Wales?
2 67859780780544
What is the emf induced at zero field current.and what does it signify?
EMF is the voltage across a coil (or motor) due to changes in the magnetic field. If you change the current the coil will generate a voltage (in the opposite direction of the current). So it is not the field but the change that matters.
What are Factors that causes a permanent magnet generator not to generate emf?
Either the break in the circuit or loss magnetic strength of the magnet - can result into no generation
What would happen if you generated gravity in a electromagnetic field?
The earth has gravity and an outer EMF. So the forces coexist. An electrical cable has a gravitational force but extremely small. When a current flows through the cable an electromagnetic field is also created (EMF). An EMF can conversely generate an electric current. The EMF pushes the electrons along the cable in one direction. Gravitational force exists between the atoms. The forces can thus vectorially added.
How does the use of nonrenewable resources compare to the use of renewable resources?
There is only one way they are similar, namely, they are both used, usually, to generate electricity. But they are very different in many many ways.
How are emf measured?
emf in volts
Why emf of battery driving potentiometer is greater than emf of the cell to be measured?
Bcoz the emf which is to be measured is less than emf of driving cell....
Does motional emf call induced emf?
yes indused emf is also called motional emf. If an open coil is subjected to a variable magnetic field, at the ends of the coil a potential difference is induced which is called induced emf. If a coil is connected to an emf source and switched on, the rising current will produced an variable magnetic field which in turn produces an emf. It is called back emf.
