Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 315 · 40 questions

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.

1. 1.📏 How many amperes (A) is 2590 mA? =
2. 2.True or false: the voltmeter is joined in series. (a) False (b) True
3. 3.True or false: the ammeter measures voltage. (a) False (b) True
4. 4.True or false: voltage is measured in volts (V). (a) False (b) True
5. 5.Which of these is measured in volts (V)? (a) energy used each second (b) resistance (c) the flow of charge (d) the push of a cell
6. 6.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the flow of water (d) the pipe colour
7. 7.📏 Which unit measures how much a part resists? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
8. 8.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
9. 9.True or false: resistance is measured in ohms (Ω). (a) False (b) True
10. 10.Which of these is measured in volts (V)? (a) voltage (b) resistance (c) power (d) the flow of charge
11. 11.True or false: the ammeter is joined in series. (a) False (b) True
12. 12.📏 How many amperes (A) is 1030 mA? =
13. 13.Which of these is measured in watts (W)? (a) the push of a cell (b) energy used each second (c) voltage (d) how much a part resists
14. 14.📏 Which unit measures power? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
15. 15.📏 How many amperes (A) is 580 mA? =
16. 16.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
17. 17.True or false: the push of a cell is measured in watts (W). (a) False (b) True
18. 18.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
19. 19.📏 How many kilowatts (kW) is 500 W? =
20. 20.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
21. 21.📏 How many kilo-ohms (kΩ) is 4700 Ω? =
22. 22.📏 How many amperes (A) is 2860 mA? =
23. 23.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
24. 24.True or false: the voltmeter measures voltage. (a) True (b) False
25. 25.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) how much a part resists (c) the push of a cell (d) current
26. 26.📏 How many kilo-ohms (kΩ) is 8800 Ω? =
27. 27.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
28. 28.Which of these is measured in amperes (A)? (a) energy used each second (b) how much a part resists (c) current (d) power
29. 29.True or false: the ammeter measures current. (a) False (b) True
30. 30.📏 How many milliamperes (mA) is 2.97 A?
31. 31.True or false: the ammeter is joined across a part. (a) True (b) False
32. 32.📏 How many watts (W) is 1.3 kW?
33. 33.📏 How many amperes (A) is 1230 mA? =
34. 34.True or false: current is measured in amperes (A). (a) False (b) True
35. 35.📏 How many ohms (Ω) is 9.2 kΩ?
36. 36.📏 How many watts (W) is 3 kW?
37. 37.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 10 (d) 1000
38. 38.📏 How many kilo-ohms (kΩ) is 8200 Ω? =
39. 39.📏 How many amperes (A) is 1680 mA? =
40. 40.True or false: the voltmeter is joined across a part. (a) True (b) False

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