MasteringPhysics: Hw 10-Ch 26 Microsoft Edge https://session.masteringphysics.co

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MasteringPhysics: Hw 10-Ch 26 Microsoft Edge https://session.masteringphysics.com myct/itemView?assignmentProblemlDz82173719 To see favorites here, select then , and drag to the Favorites Bar folder. Or import from another browser. Import favorites HW 10-Ch 2 Problem 26.36 Resources v « previous | 16 of 25 next Problem 26.36 Part A A 430 H inductor is connected across an AC generator that produces a peak voltage of 4.6 V At what frequency f is the peak current 53 mA? Express your answer using two significant figures. Submit My Answers Give Up Part B What is the instantaneous value of the emf at the instant when =? Express your answer using two significant figures. Submit My Answers Give Up Continue 8:07 PM 11/10/2017

Explanation / Answer

XL = V / I = 4.6 / (53 x 10^-3 A )

XL = 86.8 ohm

and XL = 2 pi f L

86.68 = 2 x pi x f x (430x 10^-6)

f = 32124 Hz ........Ans

(B) V = 0

{ there is lag of 90 deg }

so when IL is at peak, V will be zero.

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