0
No
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What happens to emf as a battery is used?
The emf of a batter as it is used will stay the same.
Can back emf in an inductor be in the same sense as emf of source?
yes..only the application is different.
It can be said that pressure and electromative force are the same?
There is analogy between pressure and EMF or voltage. What pressure is to the liquids, EMF or voltage is to electric current. But, of course, they are not the same.
What is the emf of an electrolytic cell made with solid aluminum and silver electrodes?
-2.48
What is the emf of a voltaic cell made with solid zinc and silver electrodes?
+1.56
What is the difference between Counter-electromotive force and back emf?
They are Same for dc motor
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.
A voltaic cell is made of silver and gold electrodes What is the emf of this cell?
1.03 V
Three similarities between pd and emf?
Both emf and pd have the same unit. namely volt Both have the same definition. It is the work performed in moving unit positive charge right from one point to the other against the electric field. Both are got by the product of current and resistance. But emf is the pd across of a cell or source when it is not in action. So emf is slightly greater than the pd in the circuit as there may be a little bit of internal resistance.
What happens to electrical current as voltage is increased?
If everything else stays the same, power increases as EMF increases. (EMF is to volts as power is to watts.)EMF = Electromotive Force.AnswerPower is proportional to the square of the voltage. So, if you double the voltage, you'll quadruple the power... providing everything else stays the same!
