Electric current is defined as the rate of flow of charge.
Calculate the total charge transferred through a lamp if a current of 0.3 mA flows for 5 minutes.
Figure 1 shows a typical electric circuit involving a battery, lamp and two resistors.
There is a gap in the circuit between points X and Y.
Figure 1
Draw on Figure 1:
With reference to the terminals of the battery, define the term ‘electron flow’ in an electric circuit.
Calculate the number of electrons flowing through the lamp in part (a) if the total charge transferred through it is 2.0 C.
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