Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 386 · 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 ohms (Ω) is 0.8 kΩ?
2. 2.Which of these is measured in amperes (A)? (a) power (b) energy used each second (c) current (d) voltage
3. 3.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
4. 4.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the water pressure (c) the flow of water (d) a narrow pipe
5. 5.📏 How many ohms (Ω) is 0.2 kΩ?
6. 6.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) resistance (c) energy used each second (d) the flow of charge
7. 7.📏 How many kilo-ohms (kΩ) is 200 Ω? =
8. 8.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
9. 9.Which of these is measured in ohms (Ω)? (a) voltage (b) the flow of charge (c) power (d) how much a part resists
10. 10.📏 How many kilo-ohms (kΩ) is 9500 Ω? =
11. 11.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
12. 12.True or false: how much a part resists is measured in watts (W). (a) False (b) True
13. 13.📏 How many watts (W) is 4.9 kW?
14. 14.True or false: the ammeter measures voltage. (a) True (b) False
15. 15.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the pipe colour (c) the water pressure (d) a narrow pipe
16. 16.True or false: current is measured in amperes (A). (a) True (b) False
17. 17.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
18. 18.Which of these is measured in watts (W)? (a) how much a part resists (b) the flow of charge (c) resistance (d) power
19. 19.📏 Which unit measures energy used each second? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
20. 20.📏 How many kilo-ohms (kΩ) is 9900 Ω? =
21. 21.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the pipe colour (c) the water tank lid (d) the water pressure
22. 22.📏 How many amperes (A) is 1880 mA? =
23. 23.📏 How many amperes (A) is 2130 mA? =
24. 24.True or false: power is measured in watts (W). (a) False (b) True
25. 25.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
26. 26.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
27. 27.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
28. 28.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
29. 29.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 1000 (d) 100
30. 30.📏 How many kilo-ohms (kΩ) is 2500 Ω? =
31. 31.📏 How many watts (W) is 4.7 kW?
32. 32.True or false: the push of a cell is measured in volts (V). (a) False (b) True
33. 33.True or false: voltage is measured in volts (V). (a) False (b) True
34. 34.True or false: the voltmeter measures current. (a) True (b) False
35. 35.📏 How many ohms (Ω) is 8.1 kΩ?
36. 36.True or false: the voltmeter is joined in series. (a) True (b) False
37. 37.📏 How many watts (W) is 2.7 kW?
38. 38.📏 How many watts (W) is 1.1 kW?
39. 39.Which of these is measured in volts (V)? (a) voltage (b) energy used each second (c) the flow of charge (d) power
40. 40.True or false: the voltmeter is joined across a part. (a) True (b) False

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