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categoryهندسة كهربائية
schoolبكالوريوس
event_available2026-07-13
السؤال
Transcribed Image Text:
Induced Current
The figures below show two different situations where a current may be induced in a
loop according to Faraday's Law, with the direction given by Lenz' Law. The magnetic
field strength in Figure 2 is represented by the density of dots. Select true or false for
the current in the loop. The cardinal directions are as defined in the compass rose.
B-field points out of page
B
S
b
Fig. 1
O
9
N
NW
NE
W-
-E
SW
SE
Fig. 2
False Fig 1: Magnet moving East, induced current 'b'.
▼Fig 1: Loop moving West, induced current 'a'.
False Fig 2: Loop moving West, no induced current.
Fig 2: Loop moving East, induced current 'a'.
True Fig 1: Magnet moving West, induced current 'a'.
Fig 2: Loop moving South, induced current 'b'.
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