Practice+Math_Science+Problems

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Questions
1. If a light bulb provides 7 ohms of resistance and the circuit contains 6 volts of electricity, what is the current? 2. A circuit has a light bulb with a resistance of 500 ohms. It has a battery with a voltage of 100 volts. What is the current? 3. If a battery has 245 volts and 167 amps. How much Resistance does it have? 4. If a light bulb has 5 ohms of resistance and 2 amps of current, how much voltage does it have? 5. If a motor has 6 current and 80 voltage, how much resistance does it have. 6. The current in a circuit is 20. The resistance from a buzzer is 5 ohms. What is the voltage? 7. There is a **parallel** circuit with a light bulb of 10 ohms and a one of 20 ohms. There is a battery with 100 volts. If the light bulb of 10 ohms fails, will the circuit continue to work and if so what is the current? 8. There is a circuit with a current of 20 amps flowing through it. There is a resistor with 40 ohms. What is the voltage of the battery? 9. If you have 110volts in your house, and the current from all electricity in your room adds up to 412amps. What is the resistance? Round to the nearest tenth. 10. If you have a voltage of 110 volts, and a resistance of 10 ohms, how many amps does the current have? 11. If you have a current of 4 amps, and a resistance of 5 ohms, what is the voltage? 12. If you have a voltage of 55 volts, and a current of 5 amps, what is the resistance? 13. If you have 2 batteries that are 20 volts each and you have two light bulbs that are 10 ohms each.What is the current? 14. If you have a resistance of 220 ohms, and a current of 0.5 amps, what is the voltage? 15. A circuit has 10 volts flowing through it, the current is 2 amps, and it has a light bulb and a motor. If the light bulb has 3 ohms of resistance, how much resistance does the motor have? 16. Draw the schematic for a flashlight that has 2 batteries, one switch, and lightbulb. Then solve the amount of voltage it has if it has 7 ohms of resistance, and 14 amps of current. 17. Draw the schematic for a motor attached to three batteries and a switch. 18. Draw the schematic for an LED light attached to a battery.

Answers
1. 1.1 amps 2. 0.2 amps 3. 1.5 ohms 4. 2.5 volts 5. 13 ohms 6. 100 volts 7. yes, 5 amps 8. 0.5 volts 9. 3.7 ohms 10. 11 amps 11. 20 volts 12. 11 ohms 13. 20 amps 14. 110 volts 15. 2 ohms 16. 17. 18.