The current in a 70.0 - mH inductor changes - with time asi = 4.00t2 8.00t, where i is in amperes and t is in seconds. (a) Find the magnitude of the induced emf at t = = 1.00 s. mV (b) Find the magnitude of the induced emf at t = 4.00 s. mV (c) At what time is the emf zero?
The current in a 70.0 - mH inductor changes - with time asi = 4.00t2 8.00t, where i is in amperes and t is in seconds. (a) Find the magnitude of the induced emf at t = = 1.00 s. mV (b) Find the magnitude of the induced emf at t = 4.00 s. mV (c) At what time is the emf zero?
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Transcribed Image Text:The current in a 70.0 - mH inductor changes
with time as i = 4.00t2 - 8.00t, where i is in
amperes and t is in seconds. (a) Find the
magnitude of the induced emf at t = 1.00 s. mV
(b) Find the magnitude of the induced emf at t
= 4.00 s. mV (c) At what time is the emf zero?
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