Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 479 · 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 0.4 kΩ?
2. 2.Which of these is measured in watts (W)? (a) the flow of charge (b) voltage (c) current (d) power
3. 3.📏 How many ohms (Ω) is 1.5 kΩ?
4. 4.True or false: the flow of charge is measured in volts (V). (a) True (b) False
5. 5.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
6. 6.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
7. 7.📏 How many ohms (Ω) is 3.6 kΩ?
8. 8.True or false: energy used each second is measured in watts (W). (a) True (b) False
9. 9.📏 How many milliamperes (mA) is 2.5 A?
10. 10.📏 How many ohms (Ω) is 7.9 kΩ?
11. 11.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
12. 12.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the water pressure (c) a narrow pipe (d) the flow of water
13. 13.Which of these is measured in volts (V)? (a) power (b) the push of a cell (c) how much a part resists (d) current
14. 14.True or false: the voltmeter measures current. (a) True (b) False
15. 15.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) the flow of water (d) a narrow pipe
16. 16.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
17. 17.True or false: voltage is measured in ohms (Ω). (a) False (b) True
18. 18.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
19. 19.📏 How many kilo-ohms (kΩ) is 800 Ω? =
20. 20.True or false: how much a part resists is measured in volts (V). (a) True (b) False
21. 21.Which of these is measured in volts (V)? (a) the flow of charge (b) how much a part resists (c) voltage (d) resistance
22. 22.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
23. 23.True or false: the push of a cell is measured in volts (V). (a) True (b) False
24. 24.True or false: the voltmeter measures voltage. (a) False (b) True
25. 25.True or false: voltage is measured in amperes (A). (a) True (b) False
26. 26.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 100 (d) 1024
27. 27.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the tap handle (c) the water tank lid (d) the pipe colour
28. 28.📏 How many kilo-ohms (kΩ) is 200 Ω? =
29. 29.📏 How many kilo-ohms (kΩ) is 4000 Ω? =
30. 30.True or false: energy used each second is measured in volts (V). (a) False (b) True
31. 31.📏 How many milliamperes (mA) is 1.55 A?
32. 32.📏 Which unit measures the push of a cell? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
33. 33.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
34. 34.📏 How many amperes (A) is 1860 mA? =
35. 35.True or false: the voltmeter is joined in series. (a) True (b) False
36. 36.📏 How many milliamperes (mA) is 2.35 A?
37. 37.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) how much a part resists (c) the flow of charge (d) current
38. 38.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
39. 39.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
40. 40.📏 How many watts (W) is 3.8 kW?

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