The diagram below shows the graph of current against voltage for a filament lamp.
Which of the following statements about the results in the graph is/are incorrect?
- The resistance of the lamp at Y is higher than the resistance at Z.
- The power dissipated by the lamp at X is less than the power dissipated at Y.
- The current increases with voltage at a decreasing rate.
Only 1
Only 2
1 and 2
1, 2 and 3
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