Physics1C_Chapter30_part2

Physics1C_Chapter30_part2 - CHAPTER 30 INDUCTANCE PART 2...

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4/15/10 1 C HAPTER 30 I NDUCTANCE P ART 2 Vahé Peroomian P ROBLEM 30.18 It is proposed to store 1.00 kW.h = 3.60 × 10 6 J of electrical energy in a uniform magnetic field with magnitude 0.600 T. (a) What volume (in vacuum) must the magnetic field occupy to store this amount of energy? (b) If instead this amount of energy is to be stored in a volume (in vacuum) equivalent to a cube 40.0 cm on a side, what magnetic field is required? T HE R-L C IRCUIT R-L circuit includes a resistor (R) and an inductor (L). V ab = IR V bc = L di dt
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2 C URRENT IN AN R-L C IRCUIT E XAMPLE 30.7 A sensitive electronic device of resistance 175 Ω is to be connected to a source of emf by a switch. The device is designed to operate with a current of 36 mA, but to avoid damage to the device, the current can rise to no more than 4.9 mA in the first 58 μs after the switch is closed. To protect the device, it is connected in series with an inductor. (a) What emf must the source have?
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This note was uploaded on 06/03/2011 for the course PHYSICS 1c taught by Professor Peroomian during the Spring '10 term at UCLA.

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Physics1C_Chapter30_part2 - CHAPTER 30 INDUCTANCE PART 2...

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