Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 232 · 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.Which of these is measured in watts (W)? (a) how much a part resists (b) energy used each second (c) voltage (d) the push of a cell
2. 2.True or false: the voltmeter is joined in series. (a) True (b) False
3. 3.True or false: the voltmeter is joined across a part. (a) False (b) True
4. 4.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
5. 5.📏 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
6. 6.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
7. 7.📏 How many milliamperes (mA) is 2.2 A?
8. 8.📏 How many amperes (A) is 440 mA? =
9. 9.📏 How many kilo-ohms (kΩ) is 6000 Ω? =
10. 10.📏 How many milliamperes (mA) is 0.09 A?
11. 11.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
12. 12.Which of these is measured in amperes (A)? (a) power (b) resistance (c) the push of a cell (d) current
13. 13.Which of these is measured in ohms (Ω)? (a) energy used each second (b) voltage (c) current (d) how much a part resists
14. 14.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 1000 (d) 10
15. 15.True or false: the ammeter is joined across a part. (a) False (b) True
16. 16.📏 How many kilo-ohms (kΩ) is 5700 Ω? =
17. 17.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
18. 18.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
19. 19.📏 How many milliamperes (mA) is 1.38 A?
20. 20.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
21. 21.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
22. 22.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
23. 23.True or false: the flow of charge is measured in volts (V). (a) True (b) False
24. 24.📏 How many ohms (Ω) is 6.8 kΩ?
25. 25.📏 How many ohms (Ω) is 7 kΩ?
26. 26.📏 Which unit measures resistance? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
27. 27.📏 How many kilowatts (kW) is 4800 W? =
28. 28.📏 Which unit measures energy used each second? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
29. 29.📏 How many watts (W) is 3.1 kW?
30. 30.📏 How many milliamperes (mA) is 2.4 A?
31. 31.📏 How many watts (W) is 2.9 kW?
32. 32.True or false: the ammeter is joined in series. (a) False (b) True
33. 33.📏 How many watts (W) is 0.6 kW?
34. 34.True or false: energy used each second is measured in volts (V). (a) False (b) True
35. 35.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
36. 36.📏 How many kilo-ohms (kΩ) is 8600 Ω? =
37. 37.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the tap handle (c) the pipe colour (d) the water tank lid
38. 38.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
39. 39.📏 How many amperes (A) is 2910 mA? =
40. 40.📏 How many watts (W) is 1.5 kW?

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