SG_exam2review

# SG_exam2review - when the time is one time constant and(c...

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1 Problem 1 (Ch 19) A particle with 52 C charge moves with a speed of 720 m/s, parallel to a long, current carrying wire as shown in Fig. The separation between the particle and the wire is 13 cm and the particle feels a force of 1.4 x 10 -7 N. Find (a) the magnitude of the magnetic field at the location of the particle (b) the current that should be carried by the wire to create this field. (c) What is the direction of the force on the particle? Conceptual Checkpoint (Ch 19)

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2 Conceptual Checkpoint (Ch 20) Problem 2 (Ch 20) You are given a coil with 100 turns and an area of 2.5 x 10 -3 m 2 . The coil can rotate with a maximum frequency of 60 Hz inside the pole pieces of a magnet. If you need to generate 120 V using this coil, what is the strength of the magnet you will use?
3 Problem 3 (Ch 20) For the circuit below, (a) find the time constant (b) What is the current in the circuit

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Unformatted text preview: when the time is one time constant and (c) after a long time after the switch is closed? Problem 4 (Ch 21) It is desired to tune the natural frequency of an LC circuit to match the 88.5 MHz signal from a FM radio station. If a 1.5 H inductor is to be used, what is the capacitance required to achieve this? 4 Conceptual Checkpoint (Ch 21) An RLC circuit is driven at its resonant frequency. Is its voltage (a) ahead (b) behind (c) in phase with the current? Problem 4 (Ch 22) A fisherman look just over the edge of a pier and spots a lobster resting at the bottom. This fishing spot is 3.5 m deep. The fisherman thinks the lobster is at 6m from the edge of the pier and tries to catch the lobster. But he can not. What is the true horizontal distance of the lobster from the pier?...
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SG_exam2review - when the time is one time constant and(c...

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