A) Approx. 20 minutes
B) Approx. 25 minutes
C) Approx. 30 minutes
D) Approx. 35 minutes
Correct Answer: B
Solution :
\[m=Zi\,t\] Þ \[1=0.00033\times 2\times t\] \ \[t=\frac{1}{0.00066\times 60}min=\frac{100000}{3960}\approx 25\,min\]You need to login to perform this action.
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