Recent content by lucky star

  1. L

    As Internal resistance and emf question

    If a cell is connected with an external resistor of 6V and a switch and a voltmeter is connected across the terminals of the cell which reads 2.6 V when the switch is open and 2.4 V when the switch is closed, how do you find the emf and the internal resistance? so far i tried doing: V = IR...