β=90-α=90-30=60°
B/t=k=0,08
Q=E²*t/R E=B*S*cos β (Е - ЭДС)
Q=(k*S*cos β)²*t/R
t=Q*R/(k*S*cos β)²=32*10^-6*10^-3/(0.08*10^-3*0.5)²=20 c
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2. Меньше.
3. Больше.