Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 704 · 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 of these is measured in watts (W)? (a) resistance (b) how much a part resists (c) power (d) voltage
2. 2.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
3. 3.📏 How many watts (W) is 0.2 kW?
4. 4.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
5. 5.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
6. 6.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 100 (d) 10
7. 7.📏 How many amperes (A) is 40 mA? =
8. 8.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water pressure (c) the pipe colour (d) the water tank lid
9. 9.📏 How many amperes (A) is 1310 mA? =
10. 10.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 100 (d) 1000
11. 11.📏 How many ohms (Ω) is 9.2 kΩ?
12. 12.📏 How many kilowatts (kW) is 4550 W? =
13. 13.Which of these is measured in ohms (Ω)? (a) energy used each second (b) current (c) power (d) how much a part resists
14. 14.📏 How many kilo-ohms (kΩ) is 8100 Ω? =
15. 15.True or false: the ammeter measures voltage. (a) False (b) True
16. 16.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
17. 17.📏 Which unit measures resistance? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
18. 18.📏 How many kilo-ohms (kΩ) is 1900 Ω? =
19. 19.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
20. 20.📏 How many watts (W) is 4.9 kW?
21. 21.📏 How many kilo-ohms (kΩ) is 5200 Ω? =
22. 22.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) the flow of water (d) a narrow pipe
23. 23.Which of these is measured in amperes (A)? (a) resistance (b) power (c) the flow of charge (d) how much a part resists
24. 24.True or false: power is measured in watts (W). (a) False (b) True
25. 25.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
26. 26.📏 How many watts (W) is 3.1 kW?
27. 27.📏 How many kilowatts (kW) is 600 W? =
28. 28.📏 How many kilo-ohms (kΩ) is 4800 Ω? =
29. 29.Which of these is measured in volts (V)? (a) energy used each second (b) the push of a cell (c) how much a part resists (d) the flow of charge
30. 30.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
31. 31.True or false: current is measured in ohms (Ω). (a) False (b) True
32. 32.📏 Which unit measures the flow of charge? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
33. 33.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
34. 34.True or false: current is measured in amperes (A). (a) True (b) False
35. 35.📏 How many milliamperes (mA) is 0.09 A?
36. 36.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
37. 37.True or false: energy used each second is measured in amperes (A). (a) False (b) True
38. 38.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
39. 39.📏 How many watts (W) is 1.6 kW?
40. 40.📏 How many kilowatts (kW) is 4300 W? =

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