Reference no: EM1367417
Q. 1. An inflated rubber balloon is rubbed with a wool cloth till an excess of a billion electrons is on the balloon. What is the magnitude of the charge on the balloon?
2. What is the force between two balloons with a negative charge of 1.6 X 10^-10 C if the balloons are 5cm apart?Q. 1. An inflated rubber balloon is rubbed with a wool cloth till an excess of a billion electrons is on the balloon. What is the magnitude of the charge on the balloon?
2. What is the force between two balloons with a negative charge of 1.6 X 10^-10 C if the balloons are 5cm apart?
3. How much energy is available from a 12V storage battery that can transfer the total charge equivalent to 100,000 C?
5. What is the magnitude of the least possible current that could theoretically exist?
6. There is a current of 0.83 A through a lightbulb in a 120 V circuit. What is the resistance of this lightbulb?
8. A 10.0 Ω lightbulb is connected to a 12 V battery.
a. What current flows through the bulb?
b. What is the power of the bulb?
9. A lightbulb designed to operate in a 120 V circuit has a resistance of 192 Ω. At what rate does the bulb use electric energy?
10. What is the monthly energy cost of leaving a 60 W bulb on continuously if electricity costs $0.10 per kWh?
11. An electric motor draws a current o 11.50A in a 240V circuit. What is the power of this motor in W?
12. A swimming pool requiring a 2 hp motor to filter and circulate the water runs for 18 hours a day. What is the monthly electrical cost for running this pool pumps if electricity costs $0.10 per kWh?
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: An inflated rubber balloon is rubbed with a wool cloth till an excess of a billion electrons is on the balloon. What is the magnitude of the charge on the balloon.
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