Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 527 · 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 make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 100 (d) 1000
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
3. 3.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
4. 4.📏 How many ohms (Ω) is 5.5 kΩ?
5. 5.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
6. 6.True or false: the ammeter measures current. (a) False (b) True
7. 7.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
8. 8.📏 Which unit measures the flow of charge? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
9. 9.True or false: energy used each second is measured in watts (W). (a) True (b) False
10. 10.True or false: current is measured in volts (V). (a) False (b) True
11. 11.📏 How many kilo-ohms (kΩ) is 6200 Ω? =
12. 12.Which of these is measured in amperes (A)? (a) power (b) the push of a cell (c) energy used each second (d) current
13. 13.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
14. 14.Which of these is measured in volts (V)? (a) resistance (b) power (c) the flow of charge (d) the push of a cell
15. 15.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
16. 16.📏 How many amperes (A) is 1770 mA? =
17. 17.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) voltage (c) energy used each second (d) the push of a cell
18. 18.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
19. 19.📏 How many kilowatts (kW) is 3700 W? =
20. 20.📏 How many watts (W) is 0.9 kW?
21. 21.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 60 (d) 1000
22. 22.📏 How many kilo-ohms (kΩ) is 8700 Ω? =
23. 23.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
24. 24.📏 How many amperes (A) is 2200 mA? =
25. 25.Which of these is measured in volts (V)? (a) power (b) voltage (c) resistance (d) the flow of charge
26. 26.📏 How many milliamperes (mA) is 2.66 A?
27. 27.True or false: voltage is measured in ohms (Ω). (a) False (b) True
28. 28.True or false: the voltmeter measures voltage. (a) True (b) False
29. 29.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
30. 30.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the pipe colour (d) the tap handle
31. 31.True or false: current is measured in ohms (Ω). (a) True (b) False
32. 32.Which of these is measured in amperes (A)? (a) the flow of charge (b) voltage (c) energy used each second (d) resistance
33. 33.True or false: the voltmeter is joined in series. (a) False (b) True
34. 34.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) a bigger tank (d) the flow of water
35. 35.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
36. 36.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the pipe colour (d) the water pressure
37. 37.True or false: the flow of charge is measured in watts (W). (a) False (b) True
38. 38.📏 How many milliamperes (mA) is 0.52 A?
39. 39.📏 How many amperes (A) is 80 mA? =
40. 40.📏 How many milliamperes (mA) is 0.82 A?

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