A single coil metal detector works by moving a coil over the sand at a beach. Suppose a penny (which is made of a magnetic material) is lost under the sand at the beach. Part A The detection of the penny is possible because $E al = -88 at an active $B.al=Ho(1+0) at $E.al= -афв at a passive $B.al=Ho(1+0) at an active a passive This metal detector is detection system.

University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
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Chapter13: Electromagnetic Induction
Section: Chapter Questions
Problem 21CQ: A conducting sheet lies in a plane perpendicular to a magnetic field B that is below the sheet. If B...
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Can someone please help with an explanation? The answer is not A or B so please don't respond with either of those. 

A single coil metal detector works by moving a coil over the sand at a beach. Suppose a penny (which is made of a magnetic material) is lost under the sand at the beach.
Part A
The detection of the penny is possible because
$E-al=
=
$E.al
an active
DE
$B-al Ho(1+€o at
-84B
at
=
-808
at
7
a passive
$ B - 0l = Ho(l + EoE)
at
Submit Previous Answers
an active
a passive
This metal detector is
All attempts used; correct answer withheld by instructor
detection system.
Transcribed Image Text:A single coil metal detector works by moving a coil over the sand at a beach. Suppose a penny (which is made of a magnetic material) is lost under the sand at the beach. Part A The detection of the penny is possible because $E-al= = $E.al an active DE $B-al Ho(1+€o at -84B at = -808 at 7 a passive $ B - 0l = Ho(l + EoE) at Submit Previous Answers an active a passive This metal detector is All attempts used; correct answer withheld by instructor detection system.
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