Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 413 · 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 volts (V)? (a) how much a part resists (b) power (c) the push of a cell (d) the flow of charge
2. 2.Which of these is measured in amperes (A)? (a) the push of a cell (b) how much a part resists (c) the flow of charge (d) voltage
3. 3.📏 How many kilo-ohms (kΩ) is 8500 Ω? =
4. 4.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 60 (d) 1000
5. 5.Which of these is measured in ohms (Ω)? (a) power (b) current (c) resistance (d) the push of a cell
6. 6.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
7. 7.True or false: current is measured in amperes (A). (a) False (b) True
8. 8.True or false: the voltmeter is joined in series. (a) False (b) True
9. 9.True or false: the ammeter measures voltage. (a) True (b) False
10. 10.📏 How many kilowatts (kW) is 1150 W? =
11. 11.📏 How many watts (W) is 2.7 kW?
12. 12.📏 How many ohms (Ω) is 9 kΩ?
13. 13.True or false: voltage is measured in watts (W). (a) True (b) False
14. 14.Which of these is measured in amperes (A)? (a) power (b) how much a part resists (c) energy used each second (d) current
15. 15.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
16. 16.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
17. 17.📏 Which unit measures resistance? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
18. 18.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
19. 19.True or false: the voltmeter measures voltage. (a) True (b) False
20. 20.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
21. 21.📏 How many milliamperes (mA) is 0.04 A?
22. 22.📏 How many watts (W) is 5 kW?
23. 23.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the water pressure (d) the tap handle
24. 24.📏 Which unit measures current? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
25. 25.True or false: the flow of charge is measured in volts (V). (a) True (b) False
26. 26.True or false: voltage is measured in volts (V). (a) False (b) True
27. 27.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
28. 28.📏 How many kilowatts (kW) is 3100 W? =
29. 29.📏 How many kilowatts (kW) is 1050 W? =
30. 30.📏 How many kilowatts (kW) is 1900 W? =
31. 31.True or false: power is measured in ohms (Ω). (a) True (b) False
32. 32.Which of these is measured in watts (W)? (a) the push of a cell (b) energy used each second (c) the flow of charge (d) how much a part resists
33. 33.True or false: the ammeter measures current. (a) True (b) False
34. 34.Which of these is measured in volts (V)? (a) power (b) how much a part resists (c) energy used each second (d) voltage
35. 35.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
36. 36.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
37. 37.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
38. 38.📏 How many amperes (A) is 1290 mA? =
39. 39.True or false: the push of a cell is measured in volts (V). (a) True (b) False
40. 40.📏 How many milliamperes (mA) is 0.98 A?

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