Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 155 · 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 across a part? (a) voltmeter (b) ammeter
2. 2.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
3. 3.True or false: the voltmeter is joined across a part. (a) False (b) True
4. 4.📏 How many kilo-ohms (kΩ) is 200 Ω? =
5. 5.📏 How many amperes (A) is 1300 mA? =
6. 6.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
7. 7.📏 How many watts (W) is 4.4 kW?
8. 8.True or false: current is measured in ohms (Ω). (a) False (b) True
9. 9.Which of these is measured in amperes (A)? (a) the push of a cell (b) voltage (c) power (d) current
10. 10.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
11. 11.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) resistance (c) the flow of charge (d) voltage
12. 12.True or false: the ammeter measures current. (a) False (b) True
13. 13.📏 Which unit measures resistance? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
14. 14.True or false: the flow of charge is measured in ohms (Ω). (a) True (b) False
15. 15.📏 Which unit measures voltage? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
16. 16.Which of these is measured in amperes (A)? (a) the flow of charge (b) resistance (c) energy used each second (d) voltage
17. 17.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the tap handle (d) the water pressure
18. 18.📏 How many watts (W) is 3.8 kW?
19. 19.📏 How many ohms (Ω) is 7 kΩ?
20. 20.📏 How many watts (W) is 4.9 kW?
21. 21.📏 How many kilo-ohms (kΩ) is 5200 Ω? =
22. 22.True or false: the voltmeter measures current. (a) False (b) True
23. 23.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) the pipe colour
24. 24.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
25. 25.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 1000 (d) 100
26. 26.📏 How many kilo-ohms (kΩ) is 6300 Ω? =
27. 27.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) a narrow pipe (d) the flow of water
28. 28.Which of these is measured in volts (V)? (a) the push of a cell (b) the flow of charge (c) power (d) energy used each second
29. 29.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
30. 30.📏 How many amperes (A) is 1030 mA? =
31. 31.Which of these is measured in watts (W)? (a) power (b) voltage (c) current (d) resistance
32. 32.📏 How many milliamperes (mA) is 1.76 A?
33. 33.True or false: the voltmeter is joined in series. (a) True (b) False
34. 34.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
35. 35.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
36. 36.📏 Which unit measures power? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
37. 37.📏 How many milliamperes (mA) is 2.38 A?
38. 38.📏 How many kilo-ohms (kΩ) is 800 Ω? =
39. 39.True or false: the ammeter measures voltage. (a) True (b) False
40. 40.📏 How many kilowatts (kW) is 3650 W? =

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