Physics

Problem

During an experiment, a student records the following readings for a cell connected to an external resistor: 1.

V = 1.2\,\text{V}

I = 0.4\,\text{A}

V = 1.0\,\text{V}

I = 0.6\,\text{A}

V = 0.8\,\text{V}

I = 0.8\,\text{A}

V = 0.5\,\text{V}

I = 1.0\,\text{A}

What is the maximum power (in watt) delivered to the external resistor among the above readings? a)

0.50\,\text{W}

1.20\,\text{W}

0.64\,\text{W}

0.60\,\text{W}