Question 4.6: The quantity of charge, Q, in coulombs passing through an el...

Modern Analytical Chemistry

The quantity of charge, Q, in coulombs passing through an electrical circuit is

Q = I × t

where I is the current in amperes and t is the time in seconds. When a current of 0.15 ± 0.01 A passes through the circuit for 120 ± 1 s, the total charge is

Q = (0.15 A) × (120 s) = 18 C

Calculate the absolute and relative uncertainties for the total charge.

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