ICSE Class 10 Answered
What is difference between E.M.F, Terminal Voltage and Voltade drop?
Asked by rohanraval2 | 09 Apr, 2020, 09:43: AM
Expert Answer
EMF - When no current is drawn from a cell, the potential difference between the terminals of the cell is called its electro-motive force (or e.m.f.)
Terminal voltage:- When current is drawn from a cell, the potential difference between the electrodes of the cell is called its terminal voltage.
Voltage drop : - When the electric cell is in a closed circuit the current flows through the circuit. There is a fall of potential across the internal resistance of the cell. So, the p.d. across the terminals in a closed circuit is less than the p.d. across the terminals in an open circuit by an amount equal to the potential drop across the internal resistance of the cell
Answered by Shiwani Sawant | 09 Apr, 2020, 12:44: PM
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