(a) Find its resistance R (in ohms) if the capacitor charges to 90.0% of its final value in 13.7 s. Ω (b) Find the average current (in A) delivered to the flash bulb if the capacitor discharges 90.0% of its full charge in 1.44 ms. A

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The RC charging circuit in a camera flash unit has a voltage source of 265 V and a capacitance of 136 μF.
HINT
(a) Find its resistance R (in ohms) if the capacitor charges to 90.0% of its final value in 13.7 s.
Ω
(b) Find the average current (in A) delivered to the flash bulb if the capacitor discharges 90.0% of its full charge in 1.44 ms.
A
Transcribed Image Text:The RC charging circuit in a camera flash unit has a voltage source of 265 V and a capacitance of 136 μF. HINT (a) Find its resistance R (in ohms) if the capacitor charges to 90.0% of its final value in 13.7 s. Ω (b) Find the average current (in A) delivered to the flash bulb if the capacitor discharges 90.0% of its full charge in 1.44 ms. A
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Physics homework question answer, step 1, image 1We know charging of capacitor follows this rule 

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