Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 681 · 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.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
2. 2.📏 How many amperes (A) is 390 mA? =
3. 3.Which of these is measured in watts (W)? (a) the push of a cell (b) the flow of charge (c) energy used each second (d) resistance
4. 4.True or false: the ammeter measures current. (a) True (b) False
5. 5.True or false: resistance is measured in ohms (Ω). (a) False (b) True
6. 6.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
7. 7.True or false: the ammeter measures voltage. (a) True (b) False
8. 8.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
9. 9.Which of these is measured in volts (V)? (a) power (b) the flow of charge (c) resistance (d) the push of a cell
10. 10.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
11. 11.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
12. 12.📏 How many milliamperes (mA) is 2.02 A?
13. 13.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1024 (d) 1000
14. 14.📏 How many amperes (A) is 1460 mA? =
15. 15.True or false: power is measured in watts (W). (a) True (b) False
16. 16.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water tank lid (d) the water pressure
17. 17.📏 How many kilowatts (kW) is 1800 W? =
18. 18.True or false: the voltmeter measures voltage. (a) False (b) True
19. 19.📏 How many watts (W) is 2.1 kW?
20. 20.📏 How many milliamperes (mA) is 2.41 A?
21. 21.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
22. 22.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
23. 23.📏 How many milliamperes (mA) is 2.42 A?
24. 24.True or false: current is measured in volts (V). (a) False (b) True
25. 25.📏 How many ohms (Ω) is 1.7 kΩ?
26. 26.📏 How many kilo-ohms (kΩ) is 5300 Ω? =
27. 27.True or false: the voltmeter is joined across a part. (a) False (b) True
28. 28.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) a narrow pipe (d) the flow of water
29. 29.Which of these is measured in amperes (A)? (a) power (b) voltage (c) how much a part resists (d) current
30. 30.True or false: the push of a cell is measured in volts (V). (a) False (b) True
31. 31.📏 How many kilowatts (kW) is 4000 W? =
32. 32.Which of these is measured in amperes (A)? (a) power (b) the flow of charge (c) voltage (d) resistance
33. 33.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
34. 34.📏 How many milliamperes (mA) is 0.99 A?
35. 35.Which of these is measured in volts (V)? (a) power (b) how much a part resists (c) voltage (d) the flow of charge
36. 36.True or false: the voltmeter measures current. (a) True (b) False
37. 37.📏 Which unit measures power? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
38. 38.True or false: voltage is measured in watts (W). (a) False (b) True
39. 39.📏 How many kilo-ohms (kΩ) is 5700 Ω? =
40. 40.📏 How many kilo-ohms (kΩ) is 200 Ω? =

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