Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 745 · 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.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
2. 2.True or false: the ammeter is joined in series. (a) True (b) False
3. 3.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
4. 4.📏 How many kilo-ohms (kΩ) is 9800 Ω? =
5. 5.📏 How many amperes (A) is 2980 mA? =
6. 6.True or false: energy used each second is measured in watts (W). (a) True (b) False
7. 7.True or false: the flow of charge is measured in watts (W). (a) False (b) True
8. 8.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
9. 9.📏 How many kilo-ohms (kΩ) is 3900 Ω? =
10. 10.Which of these is measured in ohms (Ω)? (a) voltage (b) how much a part resists (c) current (d) the push of a cell
11. 11.Which of these is measured in watts (W)? (a) the push of a cell (b) how much a part resists (c) energy used each second (d) voltage
12. 12.True or false: power is measured in ohms (Ω). (a) False (b) True
13. 13.Which of these is measured in volts (V)? (a) current (b) the flow of charge (c) voltage (d) energy used each second
14. 14.True or false: current is measured in amperes (A). (a) True (b) False
15. 15.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
16. 16.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
17. 17.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
18. 18.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
19. 19.Which of these is measured in amperes (A)? (a) the flow of charge (b) resistance (c) energy used each second (d) voltage
20. 20.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
21. 21.True or false: energy used each second is measured in volts (V). (a) True (b) False
22. 22.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
23. 23.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) current (d) power
24. 24.Which of these is measured in amperes (A)? (a) current (b) voltage (c) energy used each second (d) power
25. 25.True or false: the ammeter is joined across a part. (a) False (b) True
26. 26.📏 How many ohms (Ω) is 5.8 kΩ?
27. 27.📏 How many milliamperes (mA) is 2.68 A?
28. 28.True or false: the voltmeter is joined in series. (a) False (b) True
29. 29.True or false: the voltmeter is joined across a part. (a) False (b) True
30. 30.📏 How many kilo-ohms (kΩ) is 1600 Ω? =
31. 31.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
32. 32.📏 How many ohms (Ω) is 6.9 kΩ?
33. 33.True or false: resistance is measured in ohms (Ω). (a) False (b) True
34. 34.Which of these is measured in volts (V)? (a) the push of a cell (b) energy used each second (c) current (d) power
35. 35.📏 How many milliamperes (mA) is 0.89 A?
36. 36.📏 How many milliamperes (mA) is 0.12 A?
37. 37.📏 How many watts (W) is 0.6 kW?
38. 38.📏 How many milliamperes (mA) is 1.01 A?
39. 39.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
40. 40.📏 How many amperes (A) is 70 mA? =

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