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→Finding Current from Charge and Time
====Finding Current from Charge and Time====
{| class="wikitable"
| style="height:20px; width:300px; text-align:center;" |A charge of 15 Coulombs passes through a point in a circuit ever 0.5 52 seconds. Calculate the current flowing past this point correct to two [[Significant Figures|significant figures]].
| style="height:20px; width:300px; text-align:center;" |A capacitor stores a charge of 10C. It discharges in 12ms. Calculate the current flowing out of the capacitor correct to two [[Significant Figures|significant figures]].
|-
Q = 15C
t = 0.5s52s
| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities in correct [[unit]]s.'''
<math>I=\frac{Q}{t}</math>
<math>I=\frac{15}{0.552}</math>
<math>I=30A28.846153A</math>
<math>I\approx29A</math>
| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''