Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 552 · 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 watts (W) is 1.3 kW?
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
3. 3.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
4. 4.Which of these is measured in amperes (A)? (a) energy used each second (b) current (c) the push of a cell (d) voltage
5. 5.📏 How many ohms (Ω) is 0.3 kΩ?
6. 6.Which of these is measured in ohms (Ω)? (a) energy used each second (b) resistance (c) the flow of charge (d) the push of a cell
7. 7.📏 How many milliamperes (mA) is 0.41 A?
8. 8.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) a narrow pipe (d) the flow of water
9. 9.📏 How many ohms (Ω) is 1.3 kΩ?
10. 10.Which of these is measured in volts (V)? (a) energy used each second (b) current (c) how much a part resists (d) the push of a cell
11. 11.True or false: the voltmeter measures voltage. (a) True (b) False
12. 12.📏 How many ohms (Ω) is 7.1 kΩ?
13. 13.True or false: the voltmeter measures current. (a) False (b) True
14. 14.True or false: resistance is measured in amperes (A). (a) False (b) True
15. 15.Which of these is measured in volts (V)? (a) power (b) resistance (c) how much a part resists (d) voltage
16. 16.📏 How many amperes (A) is 1240 mA? =
17. 17.📏 How many milliamperes (mA) is 2.7 A?
18. 18.📏 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
19. 19.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
20. 20.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
21. 21.Which of these is measured in watts (W)? (a) resistance (b) energy used each second (c) current (d) voltage
22. 22.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
23. 23.📏 How many kilo-ohms (kΩ) is 7300 Ω? =
24. 24.📏 Which unit measures resistance? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
25. 25.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
26. 26.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water pressure (c) the tap handle (d) the water tank lid
27. 27.📏 How many kilo-ohms (kΩ) is 7500 Ω? =
28. 28.True or false: the push of a cell is measured in volts (V). (a) True (b) False
29. 29.True or false: the ammeter measures voltage. (a) False (b) True
30. 30.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
31. 31.True or false: current is measured in amperes (A). (a) True (b) False
32. 32.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
33. 33.Which of these is measured in watts (W)? (a) power (b) current (c) resistance (d) voltage
34. 34.Which of these is measured in ohms (Ω)? (a) power (b) voltage (c) energy used each second (d) how much a part resists
35. 35.📏 How many amperes (A) is 350 mA? =
36. 36.📏 How many milliamperes (mA) is 2.23 A?
37. 37.📏 How many amperes (A) is 2390 mA? =
38. 38.True or false: voltage is measured in watts (W). (a) True (b) False
39. 39.Which of these is measured in amperes (A)? (a) voltage (b) energy used each second (c) the push of a cell (d) the flow of charge
40. 40.True or false: the voltmeter is joined in series. (a) False (b) True

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