Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 851 · 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 ohms (Ω)? (a) resistance (b) voltage (c) energy used each second (d) current
2. 2.True or false: current is measured in volts (V). (a) False (b) True
3. 3.True or false: the push of a cell is measured in watts (W). (a) False (b) True
4. 4.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
5. 5.Which of these is measured in watts (W)? (a) the flow of charge (b) current (c) energy used each second (d) voltage
6. 6.📏 How many milliamperes (mA) is 1.19 A?
7. 7.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
8. 8.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) energy used each second (c) the flow of charge (d) voltage
9. 9.📏 How many watts (W) is 4.5 kW?
10. 10.True or false: current is measured in amperes (A). (a) False (b) True
11. 11.Which of these is measured in volts (V)? (a) voltage (b) current (c) resistance (d) power
12. 12.Which of these is measured in amperes (A)? (a) power (b) the push of a cell (c) energy used each second (d) current
13. 13.📏 How many milliamperes (mA) is 0.63 A?
14. 14.📏 How many milliamperes (mA) is 1.17 A?
15. 15.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 10 (d) 1024
16. 16.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
17. 17.📏 How many ohms (Ω) is 0.7 kΩ?
18. 18.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
19. 19.📏 Which unit measures the flow of charge? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
20. 20.Which of these is measured in volts (V)? (a) current (b) how much a part resists (c) the flow of charge (d) the push of a cell
21. 21.True or false: the ammeter measures current. (a) False (b) True
22. 22.True or false: voltage is measured in volts (V). (a) True (b) False
23. 23.True or false: the voltmeter is joined across a part. (a) False (b) True
24. 24.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
25. 25.True or false: the voltmeter measures current. (a) False (b) True
26. 26.📏 How many kilo-ohms (kΩ) is 1000 Ω? =
27. 27.📏 How many milliamperes (mA) is 1.67 A?
28. 28.📏 How many amperes (A) is 2770 mA? =
29. 29.True or false: the push of a cell is measured in volts (V). (a) False (b) True
30. 30.📏 How many ohms (Ω) is 9.5 kΩ?
31. 31.📏 Which unit measures energy used each second? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
32. 32.True or false: power is measured in watts (W). (a) False (b) True
33. 33.📏 How many kilo-ohms (kΩ) is 2900 Ω? =
34. 34.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
35. 35.📏 How many milliamperes (mA) is 1.99 A?
36. 36.True or false: the voltmeter is joined in series. (a) False (b) True
37. 37.📏 How many milliamperes (mA) is 1.39 A?
38. 38.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
39. 39.True or false: resistance is measured in watts (W). (a) False (b) True
40. 40.Which of these is measured in watts (W)? (a) the push of a cell (b) resistance (c) the flow of charge (d) power

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