A 580-mm long tungsten wire, with a 0.046-mm-diameter circular cross section, is wrapped around in the shape of a coil and used as a filament in an incandescent light bulb. When the light bulb is connected to a battery, a current of 0.526 A is measured through the filament.
Required:
a. How many electrons pass through this filament in 5 seconds?
b. How many electrons pass through this filament in 5 seconds?
c. What is the resistance of this filament? What is the resistance of this filament?
d. What is the voltage of the battery that would produce this current in the filament?
Answers: 2
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You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?
Answers: 3
A 580-mm long tungsten wire, with a 0.046-mm-diameter circular cross section, is wrapped around in t...
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