74. Resistance of an incandescent filament of a lamp is comparatively much more than that when it is at room temperature. Why? [HOTS]

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Pawan Prajapati · Answer

Answer: Explanation: When bulb is switched on (i.e., incandescent state), the temperature of filament rises. As the temperature increases, the resistance of conductor also increases.

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74. Resistance of an incandescent filament of a lamp is comparatively much more than that when it is at room temperature. Why? [HOTS]

74. Resistance of an incandescent filament of a lamp is comparatively much more than that when it is at room temperature. Why? [HOTS]

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74. Resistance of an incandescent filament of a lamp is comparatively much more than that when it is at room temperature. Why? [HOTS]

74. Resistance of an incandescent filament of a lamp is comparatively much more than that when it is at room temperature. Why? [HOTS]

1 Answers

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