The temperature of the filament when the flash light is ON.
Answer to Problem 83GP
Explanation of Solution
Given:
Original temperature is
Resistance of tungsten filament at
Current,
Voltage,
Formula used:
The resistivity of metal increases linearly with the temperature. Expression for this:
Where,
Calculation:
Resistance,
By using the formula for temperature-dependent resistivity,
Now, substitute the given equation and the temperature coefficient
Conclusion: The required temperature is
Chapter 18 Solutions
Physics: Principles with Applications
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