The quantity of electricity is measured in coulombs C. It is calculated using the formula below.
"Q=I*t" where,
Q is the quantity of electricity in C,
I is the current in amperes (amps) and
t is time in seconds.
In our question we are given,
I=0.45 amps and
t=25 minutes
Therefore we use the formula "Q=I*t" to find Q
First convert 25 min into seconds
"t=25*60=1500" seconds
"Q=0.45*1500"
"=675C"
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