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.

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