Current, Charge Flow & Time Equation (Q=Ixt) - GCSE Physics | kayscience.com

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Current is the flow of charge per second. The unit of current is amperes (amps for short) and the symbol of the unit is A. Charge is how we quantify a very large number of electrons. The unit of charge is Coulomb and the symbol of Coulomb is C. The unit of time is seconds and the unit of seconds is s. The ammeter measures the current and is connected in series. The equation to calculate current is current equals charge divided by time. The symbol of current is I, the symbol of charge is Q and the symbol of time is t.

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