Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 279 · 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 2530 mA? =
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
3. 3.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
4. 4.📏 Which unit measures energy used each second? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
5. 5.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 60 (c) 100 (d) 10
6. 6.True or false: the voltmeter is joined in series. (a) True (b) False
7. 7.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the pipe colour (c) the tap handle (d) the water tank lid
8. 8.True or false: the ammeter measures voltage. (a) True (b) False
9. 9.Which of these is measured in watts (W)? (a) voltage (b) how much a part resists (c) resistance (d) energy used each second
10. 10.True or false: voltage is measured in volts (V). (a) True (b) False
11. 11.Which of these is measured in amperes (A)? (a) how much a part resists (b) the flow of charge (c) voltage (d) power
12. 12.True or false: the voltmeter is joined across a part. (a) False (b) True
13. 13.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the pipe colour (c) a narrow pipe (d) the water pressure
14. 14.📏 How many watts (W) is 2.9 kW?
15. 15.True or false: the push of a cell is measured in watts (W). (a) True (b) False
16. 16.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) energy used each second (c) how much a part resists (d) voltage
17. 17.📏 How many watts (W) is 1.9 kW?
18. 18.Which of these is measured in volts (V)? (a) the push of a cell (b) the flow of charge (c) how much a part resists (d) resistance
19. 19.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
20. 20.True or false: the voltmeter measures current. (a) False (b) True
21. 21.True or false: the flow of charge is measured in watts (W). (a) False (b) True
22. 22.True or false: resistance is measured in ohms (Ω). (a) True (b) False
23. 23.📏 How many milliamperes (mA) is 1.32 A?
24. 24.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
25. 25.📏 How many kilo-ohms (kΩ) is 1600 Ω? =
26. 26.True or false: the ammeter is joined across a part. (a) False (b) True
27. 27.📏 How many watts (W) is 2.8 kW?
28. 28.📏 How many kilo-ohms (kΩ) is 5600 Ω? =
29. 29.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
30. 30.Which of these is measured in watts (W)? (a) voltage (b) how much a part resists (c) the flow of charge (d) power
31. 31.Which of these is measured in volts (V)? (a) the flow of charge (b) voltage (c) energy used each second (d) how much a part resists
32. 32.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
33. 33.True or false: power is measured in watts (W). (a) True (b) False
34. 34.📏 How many kilo-ohms (kΩ) is 9600 Ω? =
35. 35.📏 How many amperes (A) is 1960 mA? =
36. 36.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) resistance (c) the flow of charge (d) energy used each second
37. 37.True or false: the voltmeter measures voltage. (a) True (b) False
38. 38.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1024 (d) 1000
39. 39.📏 How many kilo-ohms (kΩ) is 3800 Ω? =
40. 40.📏 How many milliamperes (mA) is 2.16 A?

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