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Homework Statement
Can somebody explain what ems is for a person (me) who has only heard of voltage?
http://imgur.com/Y1JQy7w
Lets say the batteries volt is 10V. Is it always gonna be 10? Is the batteries ems 10V?
I am not familiar with the term "ems". Can you provide a definition or a source for where you found it?okay but am I ever gonna use emf? For example in this formula: P=VI Is V the emf or is it the ems? basically is ems always ε or can the ems value be put in an equation that containc V?
Ah! Swedish. That would explain it then. So I then interpret ems to be the same as emf in English.It is in swedish :P I am wondering if the ems is used in P=UI and when do I need the ems value?
You would have to calculate the new current given the new total resistance; Adding resistance to the circuit will decrease the current.okay so lets say the internal resistance is 1 ohm then the volt is U= 10 - (1*2)= 10 - 2 = 8
so the voltage is 8 then?
Yes. You could also have found the potential drop across R using the current flowing through it: V = (10/6 A)(5 Ω)oh right I forgot!
the total resistance is 6 ohms
the voltage is 10 V
The current is 10/6
U = 10 - (1*10/6) = 10 - 10/6 = (60/6) - (10/6) = 50/6 = 8.3333333....
is this correct?
I wondered where "s" came from. Is it that?Ah! Swedish. That would explain it then. So I then interpret ems to be the same as emf in English.