Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 182 · 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 7.8 kΩ?
2. 2.📏 How many watts (W) is 0.8 kW?
3. 3.📏 How many kilo-ohms (kΩ) is 2200 Ω? =
4. 4.Which of these is measured in volts (V)? (a) power (b) how much a part resists (c) the push of a cell (d) resistance
5. 5.True or false: the ammeter measures current. (a) False (b) True
6. 6.True or false: the flow of charge is measured in ohms (Ω). (a) True (b) False
7. 7.Which of these is measured in ohms (Ω)? (a) energy used each second (b) resistance (c) the flow of charge (d) voltage
8. 8.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
9. 9.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
10. 10.📏 How many ohms (Ω) is 8.3 kΩ?
11. 11.Which of these is measured in watts (W)? (a) the push of a cell (b) current (c) voltage (d) energy used each second
12. 12.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) the flow of water (d) a bigger tank
13. 13.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
14. 14.📏 How many kilo-ohms (kΩ) is 2800 Ω? =
15. 15.📏 How many kilowatts (kW) is 4450 W? =
16. 16.True or false: the voltmeter measures voltage. (a) False (b) True
17. 17.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
18. 18.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 1024 (d) 10
19. 19.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
20. 20.True or false: the voltmeter is joined in series. (a) True (b) False
21. 21.True or false: the voltmeter measures current. (a) True (b) False
22. 22.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
23. 23.📏 Which unit measures power? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
24. 24.📏 How many amperes (A) is 1180 mA? =
25. 25.📏 Which unit measures current? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
26. 26.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
27. 27.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
28. 28.📏 How many milliamperes (mA) is 2.51 A?
29. 29.Which of these is measured in ohms (Ω)? (a) current (b) how much a part resists (c) power (d) the push of a cell
30. 30.True or false: the ammeter measures voltage. (a) False (b) True
31. 31.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
32. 32.📏 How many ohms (Ω) is 8.7 kΩ?
33. 33.True or false: the ammeter is joined in series. (a) False (b) True
34. 34.📏 How many milliamperes (mA) is 2.59 A?
35. 35.📏 How many amperes (A) is 2350 mA? =
36. 36.📏 Which unit measures the flow of charge? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
37. 37.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the pipe colour (d) the flow of water
38. 38.📏 How many ohms (Ω) is 9.1 kΩ?
39. 39.📏 How many amperes (A) is 2420 mA? =
40. 40.True or false: power is measured in watts (W). (a) True (b) False

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