Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 506 · 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 volts (V)? (a) resistance (b) current (c) energy used each second (d) the push of a cell
2. 2.📏 How many kilo-ohms (kΩ) is 1200 Ω? =
3. 3.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
4. 4.📏 Which unit measures current? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
5. 5.True or false: the ammeter measures voltage. (a) True (b) False
6. 6.True or false: the ammeter measures current. (a) True (b) False
7. 7.True or false: resistance is measured in ohms (Ω). (a) True (b) False
8. 8.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
9. 9.📏 How many kilo-ohms (kΩ) is 8400 Ω? =
10. 10.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
11. 11.📏 How many kilo-ohms (kΩ) is 3700 Ω? =
12. 12.📏 How many milliamperes (mA) is 2.4 A?
13. 13.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
14. 14.📏 How many milliamperes (mA) is 0.46 A?
15. 15.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
16. 16.📏 How many watts (W) is 1.9 kW?
17. 17.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
18. 18.📏 How many ohms (Ω) is 0.6 kΩ?
19. 19.Which of these is measured in volts (V)? (a) the flow of charge (b) energy used each second (c) how much a part resists (d) voltage
20. 20.📏 Which unit measures power? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
21. 21.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 100 (d) 10
22. 22.📏 How many milliamperes (mA) is 1.58 A?
23. 23.True or false: current is measured in volts (V). (a) True (b) False
24. 24.📏 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
25. 25.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the flow of water (d) the water pressure
26. 26.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 60 (d) 10
27. 27.📏 How many amperes (A) is 1120 mA? =
28. 28.Which of these is measured in amperes (A)? (a) current (b) voltage (c) power (d) energy used each second
29. 29.📏 How many watts (W) is 1.4 kW?
30. 30.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) resistance (c) the flow of charge (d) voltage
31. 31.📏 Which unit measures energy used each second? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
32. 32.📏 How many watts (W) is 1.3 kW?
33. 33.True or false: the voltmeter measures voltage. (a) True (b) False
34. 34.📏 Which unit measures resistance? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
35. 35.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
36. 36.📏 How many ohms (Ω) is 0.2 kΩ?
37. 37.📏 How many milliamperes (mA) is 0.5 A?
38. 38.📏 How many kilo-ohms (kΩ) is 2000 Ω? =
39. 39.📏 How many kilo-ohms (kΩ) is 6600 Ω? =
40. 40.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the flow of charge (c) voltage (d) the push of a cell

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