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The RC charging circuit in a camera flash unit has a voltage source of 305 V and a capacitance of 126 uF. HINT (a) Find

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The RC charging circuit in a camera flash unit has a voltage source of 305 V and a capacitance of 126 uF. HINT (a) Find its resistance R (in ohms) if the capacitor charges to 90.0% of its final value in 12.7 s. |:lQ (b) Find the average current (in A) delivered to the flash bulb if the capacitor discharges 90.0% of its full charge in 1.24 ms. |:lA

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