The figure below is a graph of the induced emf versus time for a coil of N turns rotating with angular speed w in a uniform magnetic field directed perpendicular to the coil's axis of rotation. Copy this sketch (on a larger scale), and on the same set of axes show the graph of emf versus t. On the same graph, plot the following changes and provide answers to the corresponding questions. Ɛ (mV) 10 5 t (ms) 3 -5 -10 (a) The number of turns in the coil is doubled which causes the amplitude to ---Select--- and the period to ---Select--- (b) The angular speed is doubled which causes the amplitude to ---Select--- and the period to ---Result--- (c) The angular speed is doubled while the number of turns in the coil is halved which causes the amplitude to ---Result--- and the period to ---Result--- <
The figure below is a graph of the induced emf versus time for a coil of N turns rotating with angular speed w in a uniform magnetic field directed perpendicular to the coil's axis of rotation. Copy this sketch (on a larger scale), and on the same set of axes show the graph of emf versus t. On the same graph, plot the following changes and provide answers to the corresponding questions. Ɛ (mV) 10 5 t (ms) 3 -5 -10 (a) The number of turns in the coil is doubled which causes the amplitude to ---Select--- and the period to ---Select--- (b) The angular speed is doubled which causes the amplitude to ---Select--- and the period to ---Result--- (c) The angular speed is doubled while the number of turns in the coil is halved which causes the amplitude to ---Result--- and the period to ---Result--- <
Chapter13: Electromagnetic Induction
Section: Chapter Questions
Problem 90CP: A rectangular copper loop of mass 100 g and resistance 0.2 is in a region of uniform magnetic field...
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