The figures below show two different situations where a current may be induced i

Question

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 ccardinal directions are as defined in the compass rose.

True / False - Fig 2: Loop moving East, induced current 'a'.

True / False - Fig 1: Magnet moving East, induced current 'b'.

True / False - Fig 2: Loop moving South, induced current 'a'.

True / False - Fig 1: Loop moving West, induced current 'a'.

True / False - Fig 2: Loop moving West, no induced current.

True / False - Fig 1: Magnet moving West, induced current 'a'.

Explanation / Answer

(1) Loop moving East, induced current 'a'.

This is False as No flux will change here so current will not induce

(2) Magnet moving East

True as right face of loop will become north so current is induced along b

(3) Fig 2: Loop moving South

Magnetic flux is decreasing so its top face become north and for this induce current will be along a

so this is True

(4) Fig 1: Loop moving West

False as induce current will be along b

(5) Fig 2: Loop moving West

True, No current will induce

(6) Fig 1: Magnet moving West

True, Induce current will be along a

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