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
Posted: Thu May 05, 2022 6:36 pm
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