Bcoz the emf which is to be measured is less than emf of driving cell....
yes..only the application is different.
In dc motor, the armature conductors are revolving in the magnetic field and emf is induced in the armature conductors. The direction of the induced emf is in opposite direction to the applied voltage as per Flemings left hand rule. So, the induced emf in motor is called as back emf or counter emf. Vydehi
emf is electromotive force mmf is magnetic motive force emf drives electon where as mmf drives magnetic field
EMF meters can be purchased online at dedicated sites such as 'LessEMF', 'Home Depot' and 'EMF Center'. Alternatively, you could try your luck with finding one on eBay or Amazon.
Toy Ghost Detector Device Inventor or EMF Detector Inventor was Joseph P. Carcia, III Patent #4,971,592 Date - November 20, 1990
emf in volts
Bcoz the emf which is to be measured is less than emf of driving cell....
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.
EMF - band - ended in 2009.
EMF - band - was created in 1989.
EMF is greater
What is the range of the EMF spectrum
How do you proof of the existence of back emf ?
What is the range of the EMF spectrum
Unbelievable - EMF song - was created in 1990.
The emf of a batter as it is used will stay the same.