|
58.  Refer to Multiple-Concept Example 3 to
review the concepts that are needed here. A cordless
electric shaver uses energy at a rate of 4.0 W from a rechargeable 1.5-V
battery. Each of the charged particles that the battery delivers to the
shaver carries a charge that has a magnitude of 1.6 x 10-19 C. A fully charged battery allows the shaver to be used for its maximum operation time, during which 3.0 x 1022 of the charged particles pass between the terminals of
the battery as the shaver operates. What is the shaver’s maximum operation
time?
|
