What is the fractional change in the resistance
Question: What is the fractional change in the resistance of an iron filament when its temperature changes from 25.0°C to 50.0°C?
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A 25.0-Ω bulb is connected across the terminals of a 12.0-V battery having 3.50 Ω of internal resistance. What percentage of the power of the battery is dissipated across the internal resistance and hence is not available to the bulb?
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What is the fractional change in the resistance of an iron filament when its temperature changes from 25.0°C to 50.0°C?
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The headlights of a moving car require about 10 A from the l2 V alternator, which is driven by the engine. Assume the alternator is 80% efficient (its output electrical power is 80% of its input mechanical power), and calculate the horsepower the
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An electric current is given by the expression I (t) = 100 sin (120πt), where I is in amperes and t is in seconds. What is the total charge carried by the current from t = 0 to t = (1/240) s?
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