Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 378 · 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 2660 mA? =
2. 2.True or false: the voltmeter measures voltage. (a) False (b) True
3. 3.📏 How many milliamperes (mA) is 1.8 A?
4. 4.True or false: the ammeter is joined in series. (a) False (b) True
5. 5.True or false: the voltmeter is joined across a part. (a) True (b) False
6. 6.📏 How many milliamperes (mA) is 2.65 A?
7. 7.📏 Which unit measures current? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
8. 8.True or false: the ammeter measures current. (a) False (b) True
9. 9.Which of these is measured in amperes (A)? (a) how much a part resists (b) energy used each second (c) resistance (d) the flow of charge
10. 10.📏 How many watts (W) is 0.1 kW?
11. 11.True or false: the voltmeter is joined in series. (a) True (b) False
12. 12.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 100 (d) 1000
13. 13.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
14. 14.Which of these is measured in amperes (A)? (a) current (b) resistance (c) how much a part resists (d) the push of a cell
15. 15.📏 How many ohms (Ω) is 6.5 kΩ?
16. 16.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
17. 17.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
18. 18.📏 How many amperes (A) is 1960 mA? =
19. 19.True or false: the flow of charge is measured in watts (W). (a) False (b) True
20. 20.Which of these is measured in watts (W)? (a) resistance (b) current (c) voltage (d) power
21. 21.True or false: the ammeter is joined across a part. (a) False (b) True
22. 22.📏 How many amperes (A) is 1350 mA? =
23. 23.📏 How many milliamperes (mA) is 0.07 A?
24. 24.True or false: the ammeter measures voltage. (a) False (b) True
25. 25.📏 How many milliamperes (mA) is 0.08 A?
26. 26.Which of these is measured in volts (V)? (a) how much a part resists (b) the push of a cell (c) power (d) energy used each second
27. 27.📏 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
28. 28.📏 How many milliamperes (mA) is 1.98 A?
29. 29.📏 How many kilo-ohms (kΩ) is 4200 Ω? =
30. 30.📏 How many kilo-ohms (kΩ) is 1100 Ω? =
31. 31.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
32. 32.📏 How many watts (W) is 2.1 kW?
33. 33.True or false: how much a part resists is measured in volts (V). (a) True (b) False
34. 34.True or false: resistance is measured in ohms (Ω). (a) False (b) True
35. 35.True or false: the voltmeter measures current. (a) False (b) True
36. 36.📏 Which unit measures power? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
37. 37.True or false: power is measured in watts (W). (a) False (b) True
38. 38.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) a bigger tank
39. 39.📏 How many kilo-ohms (kΩ) is 5900 Ω? =
40. 40.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter

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