Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 142 · 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 1320 mA? =
2. 2.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 10 (d) 1000
3. 3.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
4. 4.Which of these is measured in amperes (A)? (a) the push of a cell (b) power (c) energy used each second (d) current
5. 5.Which of these is measured in volts (V)? (a) the push of a cell (b) power (c) how much a part resists (d) current
6. 6.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 10 (d) 1024
7. 7.📏 How many amperes (A) is 1030 mA? =
8. 8.True or false: power is measured in watts (W). (a) False (b) True
9. 9.True or false: current is measured in volts (V). (a) False (b) True
10. 10.📏 How many ohms (Ω) is 3.8 kΩ?
11. 11.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
12. 12.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
13. 13.Which of these is measured in ohms (Ω)? (a) voltage (b) how much a part resists (c) power (d) the flow of charge
14. 14.📏 How many amperes (A) is 1920 mA? =
15. 15.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
16. 16.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) resistance (c) current (d) power
17. 17.True or false: the ammeter is joined across a part. (a) False (b) True
18. 18.True or false: the voltmeter is joined across a part. (a) True (b) False
19. 19.Which of these is measured in watts (W)? (a) the push of a cell (b) the flow of charge (c) current (d) power
20. 20.True or false: energy used each second is measured in watts (W). (a) False (b) True
21. 21.📏 How many watts (W) is 2.7 kW?
22. 22.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
23. 23.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
24. 24.📏 How many kilo-ohms (kΩ) is 4600 Ω? =
25. 25.📏 How many ohms (Ω) is 6.2 kΩ?
26. 26.📏 How many ohms (Ω) is 9.4 kΩ?
27. 27.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
28. 28.📏 How many milliamperes (mA) is 1.19 A?
29. 29.📏 How many watts (W) is 2.5 kW?
30. 30.📏 Which unit measures current? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
31. 31.True or false: the voltmeter measures current. (a) False (b) True
32. 32.True or false: resistance is measured in watts (W). (a) True (b) False
33. 33.True or false: current is measured in watts (W). (a) False (b) True
34. 34.📏 Which unit measures energy used each second? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
35. 35.📏 How many kilo-ohms (kΩ) is 6000 Ω? =
36. 36.Which of these is measured in watts (W)? (a) voltage (b) energy used each second (c) how much a part resists (d) the flow of charge
37. 37.True or false: the ammeter measures current. (a) False (b) True
38. 38.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) the water pressure (c) a bigger tank (d) a narrow pipe
39. 39.📏 How many ohms (Ω) is 3.2 kΩ?
40. 40.📏 How many ohms (Ω) is 0.5 kΩ?

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