Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 261 · 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.📏 How many kilo-ohms (kΩ) is 6200 Ω? =
2. 2.📏 How many kilo-ohms (kΩ) is 4800 Ω? =
3. 3.📏 Which unit measures the push of a cell? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
4. 4.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
5. 5.True or false: the ammeter measures voltage. (a) True (b) False
6. 6.📏 How many kilo-ohms (kΩ) is 1200 Ω? =
7. 7.📏 Which unit measures voltage? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
8. 8.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 10 (c) 100 (d) 1024
9. 9.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the pipe colour (d) the flow of water
10. 10.Which of these is measured in watts (W)? (a) how much a part resists (b) the push of a cell (c) power (d) voltage
11. 11.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) a bigger tank
12. 12.📏 How many watts (W) is 3.3 kW?
13. 13.📏 How many kilowatts (kW) is 4700 W? =
14. 14.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
15. 15.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
16. 16.Which of these is measured in amperes (A)? (a) current (b) the push of a cell (c) resistance (d) power
17. 17.📏 How many kilo-ohms (kΩ) is 1100 Ω? =
18. 18.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
19. 19.Which of these is measured in volts (V)? (a) the flow of charge (b) how much a part resists (c) voltage (d) resistance
20. 20.True or false: resistance is measured in watts (W). (a) True (b) False
21. 21.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 10 (d) 60
22. 22.📏 How many amperes (A) is 1550 mA? =
23. 23.True or false: the voltmeter is joined across a part. (a) True (b) False
24. 24.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) voltage (c) current (d) power
25. 25.True or false: the ammeter measures current. (a) False (b) True
26. 26.Which of these is measured in volts (V)? (a) current (b) how much a part resists (c) the flow of charge (d) the push of a cell
27. 27.True or false: the ammeter is joined in series. (a) False (b) True
28. 28.True or false: how much a part resists is measured in watts (W). (a) True (b) False
29. 29.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
30. 30.📏 How many kilowatts (kW) is 3450 W? =
31. 31.True or false: current is measured in watts (W). (a) False (b) True
32. 32.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
33. 33.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
34. 34.Which of these is measured in ohms (Ω)? (a) resistance (b) voltage (c) power (d) energy used each second
35. 35.📏 How many kilo-ohms (kΩ) is 3900 Ω? =
36. 36.📏 How many kilowatts (kW) is 4300 W? =
37. 37.📏 How many kilo-ohms (kΩ) is 5400 Ω? =
38. 38.True or false: current is measured in amperes (A). (a) False (b) True
39. 39.True or false: how much a part resists is measured in volts (V). (a) True (b) False
40. 40.📏 How many ohms (Ω) is 4.6 kΩ?

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