A) 0.82 MUB) 0.3 fe66. A 35-µF capacitor is connected to an ac source of emf with a frequency of 250 Hz and a maximum emf of20 V. If the voltage across the capacitor is zero at time = 0, what is the voltage at time = 3.0 ms? Assume thephase constant is zero.A)-20 VB)-10 VC) 0 VD) 10 VE) 20 V75. An electron in a hydrogen atom moves in a circle of radius 1.1 x 10-10 m at a speed of about 1.6 x 106 m/s.What is the magnetic dipole moment of this electron due to its orbital motion?A) 9.3 x 10-24 J/TB) 1.4 x 10-23 J/TC) 1.9 x 10-23 J/TD) 2.8 x 10-23 J/T

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66. A 35-µF capacitor is connected to an ac source of emf with a frequency of 250 Hz and a maximum emf of 3.0 ms? Assume the 20 V. If the voltage across the capacitor is zero at time = 0, what is the voltage at time <= phase constant is zero. A)-20 V B)-10 V C) 0 V D) 10 V E) 20 V

66. A 35-µF capacitor is connected to an ac source of emf with a frequency of 250 Hz and a maximum emf of 3.0 ms? Assume the 20 V. If the voltage across the capacitor is zero at time = 0, what is the voltage at time <= phase constant is zero. A)-20 V B)-10 V C) 0 V D) 10 V E) 20 V

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter33: Inductors And Ac Circuits

Section: Chapter Questions

Problem 33PQ

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Question

A) 0.82 MU
B) 0.3 fe
66. A 35-µF capacitor is connected to an ac source of emf with a frequency of 250 Hz and a maximum emf of
20 V. If the voltage across the capacitor is zero at time = 0, what is the voltage at time = 3.0 ms? Assume the
phase constant is zero.
A)-20 V
B)-10 V
C) 0 V
D) 10 V
E) 20 V
75. An electron in a hydrogen atom moves in a circle of radius 1.1 x 10-10 m at a speed of about 1.6 x 106 m/s.
What is the magnetic dipole moment of this electron due to its orbital motion?
A) 9.3 x 10-24 J/T
B) 1.4 x 10-23 J/T
C) 1.9 x 10-23 J/T
D) 2.8 x 10-23 J/T

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