A) In a simple battery circuit, the point of lowest potential is the negative terminal of the battery
B) The resistance of an incandescent lamp is greater when the lamp is switched off
C) An ordinary 100 W lamp has less resistance than a 60 W lamp
D) At constant voltage, the heat developed in a uniform wire varies inversely as the length of the wire used
Correct Answer: B
Solution :As temperature increases resistance of filament also increases.
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