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Fields and their consequences (A-level only)

Fields and their consequences (A-level only)

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Question 50

A high-intensity flash tube in a professional camera unit relies on a 4.5 μF4.5\ \mu\text{F}4.5 μF capacitor. When fully charged, the capacitor stores 90 mJ of energy. The capacitor then discharges through the flash tube, which behaves as a constant resistance of 25 Ω.

What is the maximum current during the discharge?

A

4.0 A4.0\text{ A}4.0 A

B

8.0 mA8.0\text{ mA}8.0 mA

C

8.0 A8.0\text{ A}8.0 A

D

5.7 A5.7\text{ A}5.7 A

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Fields and their consequences (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Fields and their consequences (A-level only)

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