Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 313 · 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.True or false: the ammeter measures voltage. (a) False (b) True
2. 2.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
3. 3.📏 How many amperes (A) is 1840 mA? =
4. 4.Which of these is measured in watts (W)? (a) voltage (b) the push of a cell (c) power (d) resistance
5. 5.True or false: the voltmeter is joined across a part. (a) True (b) False
6. 6.True or false: current is measured in amperes (A). (a) False (b) True
7. 7.Which of these is measured in ohms (Ω)? (a) power (b) current (c) energy used each second (d) resistance
8. 8.True or false: resistance is measured in volts (V). (a) False (b) True
9. 9.📏 How many amperes (A) is 1880 mA? =
10. 10.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
11. 11.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
12. 12.True or false: the ammeter is joined across a part. (a) False (b) True
13. 13.📏 How many milliamperes (mA) is 2.69 A?
14. 14.📏 How many kilowatts (kW) is 1050 W? =
15. 15.True or false: current is measured in ohms (Ω). (a) False (b) True
16. 16.📏 How many kilowatts (kW) is 1450 W? =
17. 17.Which of these is measured in volts (V)? (a) power (b) the flow of charge (c) energy used each second (d) voltage
18. 18.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
19. 19.True or false: the voltmeter measures current. (a) True (b) False
20. 20.True or false: energy used each second is measured in amperes (A). (a) False (b) True
21. 21.📏 How many ohms (Ω) is 1.5 kΩ?
22. 22.True or false: the voltmeter measures voltage. (a) False (b) True
23. 23.Which of these is measured in volts (V)? (a) energy used each second (b) how much a part resists (c) the push of a cell (d) resistance
24. 24.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
25. 25.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) voltage (c) energy used each second (d) how much a part resists
26. 26.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the tap handle (c) the water tank lid (d) the pipe colour
27. 27.📏 How many milliamperes (mA) is 2.65 A?
28. 28.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 60 (c) 1000 (d) 10
29. 29.📏 How many kilo-ohms (kΩ) is 7900 Ω? =
30. 30.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
31. 31.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
32. 32.📏 How many ohms (Ω) is 7.3 kΩ?
33. 33.📏 How many kilowatts (kW) is 350 W? =
34. 34.Which of these is measured in amperes (A)? (a) resistance (b) how much a part resists (c) power (d) current
35. 35.📏 How many watts (W) is 2.5 kW?
36. 36.True or false: power is measured in watts (W). (a) True (b) False
37. 37.True or false: voltage is measured in volts (V). (a) True (b) False
38. 38.📏 How many kilo-ohms (kΩ) is 5900 Ω? =
39. 39.📏 How many kilowatts (kW) is 2150 W? =
40. 40.📏 Which unit measures current? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)

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