Answer:
800s
Step-by-step explanation:
Q=It
where,
Q=80c
I =100MA=0.1A
t=?
800=0.1×t
t=80×0.1
t=800s
800 secs
Q = it
80 = 100 x10^-3 t
t = 80/0.1
= 800secs
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