Answer:
The average emf that will be induced in the wire loop during the extraction process is 37.9 V
Explanation:
The average emf induced can be calculated from the formula

Where  is the number of turns
 is the number of turns 
 is the change in magnetic  flux
 is the change in magnetic  flux 
 is the time interval
 is the time interval
The change in magnetic flux is given by 

Where  is the final magnetic flux
 is the final magnetic flux
and  is the initial magnetic flux
 is the initial magnetic flux
Magnetic flux is given by the formula 

Where  is the magnetic field
 is the magnetic field 
 is the area
 is the area
and  is the angle between the magnetic field and the area.
 is the angle between the magnetic field and the area. 
Initially, the magnetic field and the area are pointed in the same direction, that is, 
From the question,
B = 1.5 T 
and radius = 15.0 cm = 0.15 m
Since it is a circular loop of wire, the area is given by 

∴ 

∴

( NOTE:  )
 )
 Wb
 Wb
For 
The field pointed upwards, that is  . Since
. Since 
Then 

Hence, 


From the question

Here,  = 1
 = 1
Hence, 
 becomes
 becomes 


Hence, the average emf that will be induced in the wire loop during the extraction process is 37.9 V.