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What unit measures EMF?
EMF stands for Electro-Motive Force, commonly known as Voltage, measured in Volts.
What is x y recorder and explain its working principle advantages disadvantages and applications?
Operating Principle: In x-y recorder, an emf plotted as a function of another emf, this is done by having 1 cell balancing potentiometer controlling the position of paper provided while another cell balancing potentiometer control the position of recording pen.
How many kilowatt-hours of electricity are used to produce 3.00kg of Magnesium in the electrolysis of molten MgCl2 with an applied emf of 4.50 V?
38.6 kWh
What is e equals blv?
It is the equation showing the relationship betweene, the electromagnetic force (EMF) generated between the ends of a straight conductor of length L, when it is moved with a velocity v, through a magnetic field of flux of density B.
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.
Unit of measurement for electromotive force?
emf has SI units of volts, equivalent to joules per coulomb.
What is motional emf?
Induced Current and Motional EmfThe electric field in the metal bar causes a potential difference of V = El = vBl. If the bar slides along metal rails, as in the figure below, a closed circuit is set up with current flowing in the counterclockwise direction, up the bar and then around the metal rail back to the bottom of the bar. TInduced Current and Motional EmfThe electric field in the metal bar causes a potential difference of V = El = vBl. If the bar slides along metal rails, as in the figure below, a closed circuit is set up with current flowing in the counterclockwise direction, up the bar and then around the metal rail back to the bottom of the bar. This is called an induced current.The moving bar is a source of an electromotive force, called motional emf, since the emf is generated by the motion of the bar.The force is defined as:The magnitude of the induced emf can be increased by increasing the strength of the magnetic field, moving the bar faster, or using a longer bar.ExampleA bar of length 10 cm slides along metal rails at a speed of 5 m/s in a magnetic field of 0.1 T. What is the motional emf induced in the bar and rails?Now that we've defined motional emf, solving this problem is simply a matter of plugging numbers into the appropriate equation:his is called an induced current.
What are the differences between potential difference and emf?
emf is present mainly in battery and potential difference is mainly present in circuit. emf is greater than p.d and p.d is greater than emf.......the units of both are Volt.....
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....
When did EMF - band - end?
EMF - band - ended in 2009.
When was EMF - band - created?
EMF - band - was created in 1989.
While discharging which is greater TPD or EMF?
EMF is greater
Do Emf waves travel at the speed of light?
What is the range of the EMF spectrum
How do you prove the existence of back EMF?
How do you proof of the existence of back emf ?
Do all emf waves travel at the speed of light?
What is the range of the EMF spectrum
