Main Menu Contents Grades The figures below show two different situations where

Question

Main Menu Contents Grades The figures below show two different situations where a current may be induced in a oop according to Faraday's Law, with the direction qiven by Lenz' Láw. The magnetic field is shown by the x's in Fig. 2. Select true or false for the current in the loop. (The compass directions are defined in the usual way.) NS fig 1 fig 2 True fig1: Loop moving West, induced current 'a' True fig2: Loop moving East, induced current 'b'. True fig2: Loop moving North, induced current 'b. True fig1: Magnet moving East, induced current 'a' False fig1: Magnet moving West, induced current 'a' False B fig2: Loop moving South, no induced current. The induced current tends to oppose any change in PHI of the coil. Submit Answer Incorrect. Tries 1/20

Explanation / Answer

According to the concept of the Faraday law of the electro magnetic induction

The north pole of the magnet moves towards the loop

The induced current is anti clock wise direction

The south pole of the magnet is near to the loop the induced current is clock wise direction

Basing on this condition

(1) ans

False because the loop is near to the north pole of the magnet

So the current is b

(2)ans

True because the magnetic field act inside the loop so the induced current is anti clock wise direction

That means the induced current a

(3) ans

True because the magnetic field act out side the page induced current is in clock wise direction that means the induced current b

(4)ans

False because the loop lies north side of the magnet

(5) ans

false because the loop lies south side of the magnet after crossing the loop

(6) ans

true because the magnetic field lies out side the loop after moving south

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