Question

When a camera uses a flash, a fully charged capacitor discharges through an inductor. In what time must the 0.100-A current through a 2.00-mH inductor be switched on or off to induce a 500-V emf

Answer 1

When a camera uses a flash, a fully charged capacitor discharges through an inductor. In 4 * $10^{-7}$ seconds  must the 0.100-A current through a 2.00-mH inductor be switched on or off to induce a 500-V EMF.

When a Capacitor is connected to a circuit with Direct Current (DC) source, two processes, which are called "charging" and "discharging" the Capacitor

Given

Inductance = 2 m H

EMF = 500 V

Current = 0.100 A

EMF = L (di/dt)

$\int\ \,$dt =$\int\ \,$ L di / EMF

t = L ( i / EMF )

time = 2 * $10^{-3}$ * 0.100 / 500

       =  4 * $10^{-7}$ seconds

To learn more about  inductor  here

brainly.com/question/15893850

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