When a camera flash goes off, the batteries recharge the flash's capacitor to a charge Qgiven by Q=Qo (1-e-kr) where Qo

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When a camera flash goes off, the batteries recharge the flash's capacitor to a charge Qgiven by Q=Qo (1-e-kr) where Qo

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When A Camera Flash Goes Off The Batteries Recharge The Flash S Capacitor To A Charge Qgiven By Q Qo 1 E Kr Where Qo 1
When A Camera Flash Goes Off The Batteries Recharge The Flash S Capacitor To A Charge Qgiven By Q Qo 1 E Kr Where Qo 1 (15.11 KiB) Viewed 31 times
When a camera flash goes off, the batteries recharge the flash's capacitor to a charge Qgiven by Q=Qo (1-e-kr) where Qo is the maximum charge and t is measured in seconds. How long does it take to recharge the capacitor to 90% of capacity if k = 25? Give your answer correct to three decimal places and show full working on your handwritten working. Time to reach 90% charge= seconds
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