​WHAT IS VALUE OF u₀ / 4pi?

@ ekta 

its  a simple thing ..

the value of u0 = 4 pie * 10 ^-7 

where u0 is called as the permeability .

so, the value of u0/4 pie will be 

=   10 ^-7 

its a constant ..

HOPE IT HELPS 
CHEERS