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Practice

Practice. 1.  What voltage is required to make .25 Amp current flow in a circuit with 8 Ω resistance?  2.  What current flows in a circuit with a potential  difference of 12 V, and a resistance of 25 Ω? . Practice. 3.  What is the resistance of a circuit with a voltage

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Practice

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  1. Practice 1.  What voltage is required to make .25 Amp current flow in a circuit with 8 Ω resistance?  2.  What current flows in a circuit with a potential  difference of 12 V, and a resistance of 25 Ω? 

  2. Practice 3.  What is the resistance of a circuit with a voltage  of 45 V and a current of 5 A?  4.  A circuit has a total resistance of 80 Ω. What  voltage will force .05 amps of current through it?  5.  A 40 V circuit has a resistance of 80 Ω. What  amount of current flows through it? How much  power does the circuit use?

  3. Practice 6. 4 A of current flows through a circuit with  a resistance of 8 Ω. What is the potential difference?  How much power is in the circuit?  7.  How much current flows through the filament of a 75 W light bulb connected to a 120 V potential? 

  4. Practice 8.  What is the resistance of an electric drill, whose  power rating is 400 watts, if it is connected to 115 V  of potential?  9. How much energy is spent in a circuit composed of a 12 V battery and a 0.5 A current that is run for 45 minutes?

  5. Practice 10. How much energy does a 75 W bulb consume in 17 minutes? 11. How much current passes through a 25 watt bulb with 12 ohms of resistance? 12. How much current flows through a 60 W bulb in a 110 V circuit?

  6. Practice 13. What is the resistance of a 100 watt bulb in a 110 volt circuit? 14. How many coulombs of charge pass through a circuit when 7 A of currents flows for 80 minutes?

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