Which of the following is not a correct statement
Which of the following is not a correct statement
- A
Resistivity of electrolytes decreases on increasing temperature
- B
Resistance of mercury falls on decreasing its temperature
- C
When joined in series a $40\, W$ bulb glows more than a $60\, W$ bulb
- D
Resistance of $40\, W$ bulb is less than the resistance of $60\, W$ bulb
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Assertion : An electric bulb becomes dim, when the electric heater in parallel circuit is switched on.
Reason : Dimness decreases after sometime.
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Reason : Dimness decreases after sometime.
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