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Talja [164]
3 years ago
6

Camera flashes charge a capacitor to high voltage by switching the current through an inductor on and off rapidly. 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
Physics
1 answer:
Ber [7]3 years ago
8 0

Answer:

The value is  \Delta  t = 4.0 *10^{-7} \  s

Explanation:

From the question we are told that

  The current is \Delta  I  = 0.100 \  A

  The  inductor  is L  =  2.0mH  =  2.0*10^{-3} \  H

  The voltage induced is  \epsilon   =  500 V

Generally the emf induced is mathematically represented as

      \epsilon =  L  *  \frac{\Delta I }{\Delta  t }

Here  \Delta  t is the time taken  

=>  \Delta  t =  \frac{L  * \Delta  I }{\epsilon }

=>  \Delta  t =  \frac{2*10^{-3}  * 0.100 }{500  }

=>  \Delta  t = 4.0 *10^{-7} \  s

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