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28-2 Camera flash The camera flash is a capacitor that stores a charge of 0.073 C...

28-2

Camera flash The camera flash is a capacitor that stores a charge of 0.073 C at 330 V. The flash releases energy to a light bulb with a resistance 5 Ω. This is an RC circuit, so the power will decay. Find the:

a) capacitance of the flash in μF. Eq. (26.15)

b) initial power in kW used by the light bulb. Eq. (28.12)

c) decay time constant τ in ms. Eq. (28.30)

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