Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 17 · 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 5300 Ω? =
2. 2.Which of these is measured in amperes (A)? (a) power (b) resistance (c) current (d) energy used each second
3. 3.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
4. 4.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the pipe colour (c) a narrow pipe (d) the water pressure
5. 5.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water pressure (d) the water tank lid
6. 6.True or false: the ammeter is joined in series. (a) True (b) False
7. 7.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
8. 8.Which of these is measured in watts (W)? (a) power (b) the flow of charge (c) how much a part resists (d) voltage
9. 9.Which of these is measured in amperes (A)? (a) energy used each second (b) power (c) the flow of charge (d) the push of a cell
10. 10.📏 How many amperes (A) is 930 mA? =
11. 11.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
12. 12.True or false: the push of a cell is measured in watts (W). (a) True (b) False
13. 13.True or false: the ammeter measures voltage. (a) True (b) False
14. 14.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
15. 15.📏 How many milliamperes (mA) is 0.19 A?
16. 16.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
17. 17.📏 How many watts (W) is 3 kW?
18. 18.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
19. 19.True or false: the voltmeter is joined in series. (a) True (b) False
20. 20.Which of these is measured in volts (V)? (a) the flow of charge (b) the push of a cell (c) resistance (d) current
21. 21.📏 How many amperes (A) is 1310 mA? =
22. 22.True or false: the flow of charge is measured in volts (V). (a) False (b) True
23. 23.📏 How many ohms (Ω) is 0.7 kΩ?
24. 24.True or false: power is measured in volts (V). (a) False (b) True
25. 25.True or false: the ammeter measures current. (a) False (b) True
26. 26.📏 How many kilowatts (kW) is 4450 W? =
27. 27.📏 How many milliamperes (mA) is 0.06 A?
28. 28.📏 How many milliamperes (mA) is 1.65 A?
29. 29.Which of these is measured in ohms (Ω)? (a) energy used each second (b) resistance (c) current (d) voltage
30. 30.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
31. 31.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
32. 32.📏 How many milliamperes (mA) is 2.41 A?
33. 33.📏 How many ohms (Ω) is 7.9 kΩ?
34. 34.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
35. 35.True or false: voltage is measured in volts (V). (a) True (b) False
36. 36.True or false: the voltmeter measures voltage. (a) False (b) True
37. 37.True or false: energy used each second is measured in amperes (A). (a) True (b) False
38. 38.True or false: voltage is measured in amperes (A). (a) False (b) True
39. 39.📏 How many amperes (A) is 1770 mA? =
40. 40.Which of these is measured in watts (W)? (a) resistance (b) energy used each second (c) current (d) voltage

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