Answer to Question #114573 in Electricity and Magnetism for Gavin

Question

July 16, 2186 a solar eclipse lasting seven minutes and 29 seconds will be observed over the mid Atlantic ocean during the eclipse in observer may need a flashlight to see if the flashlight draws a current of .22 A how much charge will pass to the lightbulb during the eclipse

Answer 1

The current strength shows what charge passes through the cross section of the conductor per unit time.

$I=\frac{q}{t}$

then write

$q=I \cdot t=0.22 \cdot(7 \cdot60+29)=0.22 \cdot 449=98.78 C$