Capacitance (A-level only)

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Question 15

A high-intensity flash tube in a professional camera unit relies on a $μF4.5\ \mu\text{F}$ 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?

$A4.0\text{ A}$

$mA8.0\text{ mA}$

$A8.0\text{ A}$

$A5.7\text{ A}$

Capacitance (A-level only)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52

Question 15

A high-intensity flash tube in a professional camera unit relies on a $μF4.5\ \mu\text{F}$ 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?

$A4.0\text{ A}$

$mA8.0\text{ mA}$

$A8.0\text{ A}$

$A5.7\text{ A}$

Capacitance (A-level only)

Question 15

Capacitance (A-level only) Questions

Capacitance (A-level only)

Question 15

Capacitance (A-level only) Questions