Répondre :
B = 2,5 x (10³)⁴ x 10⁻⁸
50 x 10⁻² x 1
3
=(2,5*3)/50*10^(12-8+2)
=0,15*10^6
=150 000
=1,5*10^5
50 x 10⁻² x 1
3
=(2,5*3)/50*10^(12-8+2)
=0,15*10^6
=150 000
=1,5*10^5