Capacitance (A-level only)

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Question 4

A high-voltage capacitor in a pulsed-laser system has capacitance $C\,$ and is initially charged to a potential difference $V$ . During a rapid discharge cycle, the charge on the plates is reduced to $14\displaystyle \frac{1}{4}$ of its initial value while the capacitance remains constant. What is the decrease in the electrical energy stored by the capacitor?

$132CV2\frac{1}{32} C V^2$

$38CV2\frac{3}{8} C V^2$

$1532CV2\frac{15}{32} C V^2$

$1516CV2\frac{15}{16} C V^2$

Capacitance (A-level only)

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Question 4

A high-voltage capacitor in a pulsed-laser system has capacitance $C\,$ and is initially charged to a potential difference $V$ . During a rapid discharge cycle, the charge on the plates is reduced to $14\displaystyle \frac{1}{4}$ of its initial value while the capacitance remains constant. What is the decrease in the electrical energy stored by the capacitor?

$132CV2\frac{1}{32} C V^2$

$38CV2\frac{3}{8} C V^2$

$1532CV2\frac{15}{32} C V^2$

$1516CV2\frac{15}{16} C V^2$

Capacitance (A-level only)

Question 4

Capacitance (A-level only) Questions

Capacitance (A-level only)

Question 4

Capacitance (A-level only) Questions