How am I supposed to find the value of e.m.f. and internal resistance from a Resistance against 1/Current graph?
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R against 1/I for e.m.f. and internal resistance? watch
- Thread Starter
- 20-02-2018 18:51
- 20-02-2018 19:58
Are you sure it's V against 1/I ?? The most common graph here is V against I and I don't think V vs 1/I would give you a straight line.
Take your equation
Emf = IR + Ir
or Emf = V + Ir
Rearraging gives V = Emf - Ir which we compare to y = mx + c
(It's easier for me if I now rewrite it as V = -Ir + E)
From that, with V as y and I as x you can find r and E