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?
Two conductors having net charges of + 10.0µC and -10.0 µC have a potential difference of 10.0 V between them. (a) Determine the capacitance of the system.
A small object is released from rest just below the surface of the water. It takes time t to sink the bottom at depth d. (write the formula for Px) A) what is the density of the object Px?
A potential difference of 100 V produces a current of 3 A in a certain resistor. (a) What is the resistance of the resistor
What is the fractional change in the resistance of an iron filament when its temperature changes from 25.0°C to 50.0°C?
Use Gauss' Law and Ampere's Law to find both the capacitance per unit length and the inductance per unit length of a coaxial cable with an outer radius of 4.5 mm and an inner radius of 1.5 mm.
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
A uniform solid sphere of radius 0.491 m and mass 14.0 kg turns counterclockwise about a vertical axis through its center (when viewed from above). Find its vector angular momentum when its angular speed is 2.98 rad/s.
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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