*55 Figure 31-32 shows anac generator connected to a"black box" through a pair ofterminals. The box contains anand 64.i()RLC circuit, possibly even amultiloop circuit, whose ele-ments and connections we doE(1)Fig. 31-32 Problem 55.not know. Measurements out-side the box reveal thatE(1) = (75.0 V) sin wt!!andi(t) = (1.20 A) sin(wt + 42.0°). (a) What is the power factor? (b) Does the current lead or lagthe emf? (c) Is the circuit in the box largely inductive orlargely capacitive? (d) Is the circuit in the box in resonance?(e) Must there be a capacitor in the box? (f) An inductor? (g)A resistor? (h) At what average rate is energy delivered tothe box by the generator? (i) Why don't you need to knoww, to answer all these questions? SSM www

Answered: Image /qna-images/answer/96613f67-4b69-45ed-bea8-b7100a10ff79.jpg

and 64. *55 Figure 31-32 shows an ac generator connected to a "black box" through a pair of terminals. The box contains an RLC circuit, possibly even a g0) multiloop circuit, whose ele- ments and connections we do i() Fig. 31-32 Problem 55. not know. Measurements out- side the box reveal that E(1) = (75.0 V) sin wt !! and i(1) = (1.20 A) sin(wt + 42.0°).

and 64. *55 Figure 31-32 shows an ac generator connected to a "black box" through a pair of terminals. The box contains an RLC circuit, possibly even a g0) multiloop circuit, whose ele- ments and connections we do i() Fig. 31-32 Problem 55. not know. Measurements out- side the box reveal that E(1) = (75.0 V) sin wt !! and i(1) = (1.20 A) sin(wt + 42.0°).

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.

Question

100%

*55 Figure 31-32 shows an
ac generator connected to a
"black box" through a pair of
terminals. The box contains an
and 64.
i()
RLC circuit, possibly even a
multiloop circuit, whose ele-
ments and connections we do
E(1)
Fig. 31-32 Problem 55.
not know. Measurements out-
side the box reveal that
E(1) = (75.0 V) sin wt
!!
and
i(t) = (1.20 A) sin(wt + 42.0°).

(a) What is the power factor? (b) Does the current lead or lag
the emf? (c) Is the circuit in the box largely inductive or
largely capacitive? (d) Is the circuit in the box in resonance?
(e) Must there be a capacitor in the box? (f) An inductor? (g)
A resistor? (h) At what average rate is energy delivered to
the box by the generator? (i) Why don't you need to know
w, to answer all these questions? SSM www

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