A typical car headlight may put out 50 watts at 12 volts.
a. Show that 4.2 A is drawn by the headlight.
b. How many electrons pass through the bulb filament each second?
(a)
To show: The current from headlight is 4.2 A
Explanation of Solution
The current from headlight is
(b)
To find: the number of electron pass from bulb filament
Explanation of Solution
Magnitude of Charge on electron,
The number of electron pass from bulb filament in time,
Chapter 34 Solutions
Conceptual Physics: The High School Physics Program
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