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Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 236 · 40 questions
TalentJR

Remember (Push, flow, resist): Voltage → volts (V), current → amperes (A), resistance → ohms (Ω), power → watts (W). milli (m) = ÷ 1000 and kilo (k) = × 1000: 250 mA = 0.25 A, 2.2 kΩ = 2200 Ω. Voltmeter across a part; ammeter in series.

NameDateTime takenScore ___ / 40
  1. 1.📏 How many milliamperes (mA) is 0.4 A?
  2. 2.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 10 (d) 1000
  3. 3.📏 Which unit measures current? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
  4. 4.📏 How many kilowatts (kW) is 3600 W? =
  5. 5.📏 How many amperes (A) is 610 mA? =
  6. 6.📏 How many amperes (A) is 2290 mA? =
  7. 7.📏 How many milliamperes (mA) is 2.37 A?
  8. 8.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 60 (c) 10 (d) 100
  9. 9.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
  10. 10.Which of these is measured in amperes (A)? (a) energy used each second (b) resistance (c) current (d) the push of a cell
  11. 11.True or false: voltage is measured in ohms (Ω). (a) True (b) False
  12. 12.📏 How many milliamperes (mA) is 1.9 A?
  13. 13.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
  14. 14.📏 How many ohms (Ω) is 3.5 kΩ?
  15. 15.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the tap handle (d) the pipe colour
  16. 16.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
  17. 17.True or false: the ammeter is joined across a part. (a) True (b) False
  18. 18.True or false: the voltmeter is joined in series. (a) True (b) False
  19. 19.True or false: the ammeter measures voltage. (a) False (b) True
  20. 20.Which of these is measured in amperes (A)? (a) resistance (b) energy used each second (c) the flow of charge (d) how much a part resists
  21. 21.📏 How many watts (W) is 4.5 kW?
  22. 22.📏 How many ohms (Ω) is 7.2 kΩ?
  23. 23.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
  24. 24.True or false: current is measured in amperes (A). (a) True (b) False
  25. 25.📏 How many ohms (Ω) is 0.1 kΩ?
  26. 26.Which of these is measured in watts (W)? (a) resistance (b) the push of a cell (c) power (d) the flow of charge
  27. 27.📏 How many amperes (A) is 1720 mA? =
  28. 28.📏 How many kilo-ohms (kΩ) is 1200 Ω? =
  29. 29.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
  30. 30.📏 How many kilo-ohms (kΩ) is 4800 Ω? =
  31. 31.📏 How many kilowatts (kW) is 5000 W? =
  32. 32.📏 Which unit measures the flow of charge? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
  33. 33.📏 How many ohms (Ω) is 6.2 kΩ?
  34. 34.True or false: the ammeter measures current. (a) False (b) True
  35. 35.Which of these is measured in volts (V)? (a) current (b) energy used each second (c) voltage (d) power
  36. 36.True or false: the voltmeter measures voltage. (a) True (b) False
  37. 37.📏 How many ohms (Ω) is 4.8 kΩ?
  38. 38.📏 How many kilo-ohms (kΩ) is 6000 Ω? =
  39. 39.📏 How many amperes (A) is 1060 mA? =
  40. 40.True or false: the push of a cell is measured in amperes (A). (a) True (b) False

Answer key

  1. 400
  2. 1000
  3. ampere (A)
  4. 3.6
  5. 0.61
  6. 2.29
  7. 2370
  8. 1000
  9. voltmeter
  10. current
  11. False
  12. 1900
  13. watt (W)
  14. 3500
  15. the water pressure
  16. ammeter
  17. False
  18. False
  19. False
  20. the flow of charge
  21. 4500
  22. 7200
  23. volt (V)
  24. True
  25. 100
  26. power
  27. 1.72
  28. 1.2
  29. volt (V)
  30. 4.8
  31. 5
  32. ampere (A)
  33. 6200
  34. True
  35. voltage
  36. True
  37. 4800
  38. 6
  39. 1.06
  40. False

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