7.7 Thermodynamics of reversible cell 7.7.1 Measurement of Electromotive forces(emfs) What is electromotive forces? Can voltameter be used to measure electromotive force? U E=(R+R)= R r+ E R 1+ Discussion E R R High-impedance input voltameter7.7.1 Measurement of Electromotive forces (emf's) Can voltameter be used to measure electromotive force? E R R I o i = ( + ) Ro U I = U R R R E o o + i = o i R R U E = 1+ V E Ri Ro U Discussion What is electromotive forces? High-impedance input voltameter §7.7 Thermodynamics of reversible cell