Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 332 · 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 900 Ω? =
2. 2.📏 How many amperes (A) is 2480 mA? =
3. 3.📏 How many amperes (A) is 2190 mA? =
4. 4.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 10 (d) 1000
5. 5.True or false: the flow of charge is measured in volts (V). (a) True (b) False
6. 6.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
7. 7.True or false: resistance is measured in ohms (Ω). (a) False (b) True
8. 8.📏 How many watts (W) is 2.1 kW?
9. 9.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) the pipe colour
10. 10.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
11. 11.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
12. 12.📏 How many milliamperes (mA) is 1.01 A?
13. 13.True or false: the push of a cell is measured in volts (V). (a) True (b) False
14. 14.True or false: voltage is measured in watts (W). (a) False (b) True
15. 15.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
16. 16.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
17. 17.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) energy used each second (c) power (d) current
18. 18.True or false: the ammeter measures current. (a) False (b) True
19. 19.📏 Which unit measures voltage? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
20. 20.📏 How many kilo-ohms (kΩ) is 4900 Ω? =
21. 21.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
22. 22.True or false: the voltmeter is joined in series. (a) True (b) False
23. 23.True or false: current is measured in ohms (Ω). (a) True (b) False
24. 24.True or false: the voltmeter is joined across a part. (a) True (b) False
25. 25.📏 How many ohms (Ω) is 0.7 kΩ?
26. 26.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
27. 27.Which of these is measured in volts (V)? (a) energy used each second (b) the flow of charge (c) voltage (d) how much a part resists
28. 28.📏 How many kilowatts (kW) is 300 W? =
29. 29.True or false: current is measured in amperes (A). (a) True (b) False
30. 30.📏 How many amperes (A) is 2050 mA? =
31. 31.📏 How many kilo-ohms (kΩ) is 8400 Ω? =
32. 32.Which of these is measured in volts (V)? (a) power (b) energy used each second (c) how much a part resists (d) the push of a cell
33. 33.Which of these is measured in watts (W)? (a) voltage (b) power (c) the flow of charge (d) current
34. 34.📏 How many kilowatts (kW) is 1950 W? =
35. 35.📏 How many milliamperes (mA) is 1.38 A?
36. 36.📏 How many ohms (Ω) is 3.1 kΩ?
37. 37.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
38. 38.📏 How many kilo-ohms (kΩ) is 9600 Ω? =
39. 39.Which of these is measured in ohms (Ω)? (a) voltage (b) resistance (c) power (d) the push of a cell
40. 40.📏 How many kilo-ohms (kΩ) is 9400 Ω? =

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