Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 528 · 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.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the water pressure (d) the flow of water
2. 2.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
3. 3.📏 How many amperes (A) is 400 mA? =
4. 4.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 60 (c) 1000 (d) 10
5. 5.📏 How many kilo-ohms (kΩ) is 6900 Ω? =
6. 6.📏 How many ohms (Ω) is 7.8 kΩ?
7. 7.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
8. 8.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) a bigger tank (c) the water pressure (d) the flow of water
9. 9.📏 How many ohms (Ω) is 9 kΩ?
10. 10.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) resistance (c) power (d) the push of a cell
11. 11.True or false: current is measured in amperes (A). (a) True (b) False
12. 12.📏 How many kilowatts (kW) is 4400 W? =
13. 13.Which of these is measured in ohms (Ω)? (a) voltage (b) power (c) the push of a cell (d) how much a part resists
14. 14.📏 How many amperes (A) is 1110 mA? =
15. 15.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
16. 16.True or false: the ammeter is joined across a part. (a) False (b) True
17. 17.📏 How many milliamperes (mA) is 0.43 A?
18. 18.True or false: the ammeter measures voltage. (a) True (b) False
19. 19.True or false: the voltmeter is joined in series. (a) False (b) True
20. 20.📏 How many amperes (A) is 340 mA? =
21. 21.True or false: the voltmeter measures current. (a) True (b) False
22. 22.📏 How many ohms (Ω) is 3.4 kΩ?
23. 23.True or false: resistance is measured in ohms (Ω). (a) False (b) True
24. 24.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
25. 25.📏 How many watts (W) is 1.1 kW?
26. 26.Which of these is measured in amperes (A)? (a) current (b) the push of a cell (c) energy used each second (d) how much a part resists
27. 27.📏 How many ohms (Ω) is 0.9 kΩ?
28. 28.📏 How many kilo-ohms (kΩ) is 2300 Ω? =
29. 29.📏 How many watts (W) is 3.6 kW?
30. 30.Which of these is measured in volts (V)? (a) how much a part resists (b) current (c) resistance (d) voltage
31. 31.📏 How many watts (W) is 0.4 kW?
32. 32.Which of these is measured in watts (W)? (a) power (b) the flow of charge (c) the push of a cell (d) resistance
33. 33.📏 How many kilo-ohms (kΩ) is 8100 Ω? =
34. 34.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
35. 35.Which of these is measured in volts (V)? (a) the push of a cell (b) energy used each second (c) how much a part resists (d) current
36. 36.📏 How many milliamperes (mA) is 2.65 A?
37. 37.📏 How many watts (W) is 4.5 kW?
38. 38.📏 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
39. 39.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
40. 40.📏 How many ohms (Ω) is 6.5 kΩ?

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