The flash unit in a camera uses a 3.0 V battery to charge acapacitor. The capacitor is then discharged through a flashlamp. The discharge takes 7 µs, andthe average power dissipated in the flashlamp is 8 W. What is the capacitance of the capacitor?

Explanation:

Energy Stored on a Capacitor

This energy is stored in the electric field present when a voltage V is applied to a capacitor C. It can be computed by the formula

We can compute the energy by knowing the power dissipated in the flashlamp is P=8 W in a time of

Solving the first equation for C

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

b mirrors submit a iisner? e. for which optical devices does d sometimes have a positive value? o a a and b o b. a and c o c. b and d 0 d. b and cb