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A length of aluminum wire has a resistance of 10.0 ? at 32.0°C. When the wire is warmed in an oven and reaches thermal equilibrium, the resistance of the wire increases to 26.2 ?.
(a) Neglecting thermal expansion, find the temperature of the oven.
°C
(b) Qualitatively, how would thermal expansion be expected to affect the answer?
Two cylindrical bars, each with diameter of 2.50 cm, are welded together end-to-end. One of the original bars is copper and is 0.360 m long, What is the resistance between the ends of the welded bar at 20 oC
The current in a coil changes from 3.1 A to 1.9 A in 0.52 s. what is the self-inductance of the coil
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A 2.1-kg block is released from rest and allowed to slide down a frictionless surface and into a spring. The far end of the spring is attached to a wall, as shown. The initial height of the block is 0.36 m above the lowest part of the slide and the s..
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