Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 301 · 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.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
2. 2.Which of these is measured in volts (V)? (a) energy used each second (b) power (c) current (d) the push of a cell
3. 3.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
4. 4.📏 How many milliamperes (mA) is 1.82 A?
5. 5.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) power (c) energy used each second (d) how much a part resists
6. 6.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
7. 7.📏 How many watts (W) is 4.1 kW?
8. 8.True or false: the ammeter measures voltage. (a) True (b) False
9. 9.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
10. 10.True or false: the ammeter is joined across a part. (a) False (b) True
11. 11.True or false: resistance is measured in watts (W). (a) False (b) True
12. 12.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
13. 13.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 10 (d) 1000
14. 14.📏 How many watts (W) is 0.7 kW?
15. 15.Which of these is measured in amperes (A)? (a) current (b) how much a part resists (c) resistance (d) voltage
16. 16.True or false: current is measured in amperes (A). (a) False (b) True
17. 17.True or false: power is measured in watts (W). (a) False (b) True
18. 18.📏 How many kilo-ohms (kΩ) is 300 Ω? =
19. 19.Which of these is measured in volts (V)? (a) how much a part resists (b) energy used each second (c) voltage (d) resistance
20. 20.📏 How many ohms (Ω) is 1.4 kΩ?
21. 21.Which of these is measured in ohms (Ω)? (a) voltage (b) resistance (c) the push of a cell (d) current
22. 22.📏 How many watts (W) is 4.9 kW?
23. 23.📏 How many amperes (A) is 1180 mA? =
24. 24.📏 How many milliamperes (mA) is 1.92 A?
25. 25.📏 How many kilo-ohms (kΩ) is 8000 Ω? =
26. 26.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the pipe colour (d) the water pressure
27. 27.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
28. 28.True or false: voltage is measured in watts (W). (a) True (b) False
29. 29.📏 Which unit measures current? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
30. 30.📏 How many milliamperes (mA) is 2.96 A?
31. 31.True or false: the voltmeter is joined across a part. (a) False (b) True
32. 32.📏 How many kilowatts (kW) is 2850 W? =
33. 33.Which of these is measured in watts (W)? (a) energy used each second (b) the flow of charge (c) the push of a cell (d) voltage
34. 34.📏 Which unit measures resistance? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
35. 35.True or false: the ammeter is joined in series. (a) True (b) False
36. 36.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
37. 37.📏 How many kilo-ohms (kΩ) is 2900 Ω? =
38. 38.True or false: the voltmeter is joined in series. (a) True (b) False
39. 39.📏 How many milliamperes (mA) is 2.2 A?
40. 40.📏 Which unit measures how much a part resists? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)

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