Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 772 · 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 kilo-ohms (kΩ) is 2200 Ω? =
2. 2.📏 How many watts (W) is 1 kW?
3. 3.📏 Which unit measures voltage? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
4. 4.📏 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
5. 5.Which of these is measured in watts (W)? (a) how much a part resists (b) the flow of charge (c) current (d) energy used each second
6. 6.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
7. 7.📏 How many milliamperes (mA) is 0.04 A?
8. 8.True or false: the voltmeter measures voltage. (a) False (b) True
9. 9.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
10. 10.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
11. 11.True or false: the ammeter is joined in series. (a) True (b) False
12. 12.True or false: how much a part resists is measured in volts (V). (a) False (b) True
13. 13.True or false: the voltmeter is joined in series. (a) False (b) True
14. 14.📏 How many ohms (Ω) is 2.5 kΩ?
15. 15.📏 How many watts (W) is 4.3 kW?
16. 16.Which of these is measured in ohms (Ω)? (a) energy used each second (b) power (c) resistance (d) current
17. 17.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
18. 18.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) energy used each second (c) power (d) current
19. 19.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
20. 20.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
21. 21.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
22. 22.📏 How many ohms (Ω) is 5.7 kΩ?
23. 23.True or false: energy used each second is measured in watts (W). (a) True (b) False
24. 24.📏 How many kilo-ohms (kΩ) is 1100 Ω? =
25. 25.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
26. 26.📏 How many kilowatts (kW) is 2050 W? =
27. 27.📏 How many kilo-ohms (kΩ) is 1500 Ω? =
28. 28.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) the pipe colour
29. 29.True or false: the ammeter measures voltage. (a) False (b) True
30. 30.📏 How many amperes (A) is 1270 mA? =
31. 31.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
32. 32.📏 How many ohms (Ω) is 5 kΩ?
33. 33.📏 How many amperes (A) is 2480 mA? =
34. 34.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
35. 35.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 10 (d) 100
36. 36.📏 How many kilo-ohms (kΩ) is 8600 Ω? =
37. 37.Which of these is measured in volts (V)? (a) how much a part resists (b) power (c) the flow of charge (d) voltage
38. 38.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
39. 39.📏 How many watts (W) is 2.8 kW?
40. 40.Which of these is measured in volts (V)? (a) the push of a cell (b) the flow of charge (c) power (d) how much a part resists

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