How will the needles point after the switch is closed? The north of the upper needle will point out of the page. The north of the lower needle will point into the page. The north of the upper needle will point to the right. The north of the lower needle will point to the left (the arrangement will change to the opposite.) The north of the upper needle will point into the page. The north of the lower needle will point out of the page. The north of the upper needle will point to the left. The north of the O lower needle will point to the right

How will the needles point after the switch is closed? The north of the upper needle will point out of the page. The north of the lower needle will point into the page. The north of the upper needle will point to the right. The north of the lower needle will point to the left (the arrangement will change to the opposite.) The north of the upper needle will point into the page. The north of the lower needle will point out of the page. The north of the upper needle will point to the left. The north of the O lower needle will point to the right

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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Concept explainers

Bar Magnet

In physics, magnetism is a phenomenon exhibited by a magnetic substance that exerts either attractive or repulsive force. A bar magnet is either a rectangular or round and hollow fit comprised of ferromagnetic materials and has a fanciful attractive field surrounded by it.

Question

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How will the needles point after
the switch is closed?
The north of the upper needle will
point out of the page. The north of
the lower needle will point into the
page.
The north of the upper needle will
point to the right. The north of the
lower needle will point to the left
(the arrangement will change to the
opposite.)
The north of the upper needle will
point into the page. The north of the
lower needle will point out of the
page.
The north of the upper needle will
point to the left. The north of the
lower needle will point to the right
(the arrangement will remain the
same.)

Two compass needles are fixed at the ends of a straw
(the north pole of one needle is placed above the south
pole of the other needle) and are hung at the end of a
light string as shown in (Figure 1). The needles are
brought close to a long horizontal wire connected to a
circuit, as shown in the figure.
Figure
1 of 1
1
N
S
S
N
+

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