Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 922 · 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 push of a cell is measured in ohms (Ω). (a) False (b) True
2. 2.📏 How many amperes (A) is 2400 mA? =
3. 3.True or false: the ammeter is joined in series. (a) False (b) True
4. 4.True or false: energy used each second is measured in watts (W). (a) True (b) False
5. 5.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
6. 6.📏 How many kilowatts (kW) is 2750 W? =
7. 7.📏 How many kilo-ohms (kΩ) is 500 Ω? =
8. 8.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 60 (d) 100
9. 9.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
10. 10.True or false: voltage is measured in volts (V). (a) False (b) True
11. 11.Which of these is measured in amperes (A)? (a) how much a part resists (b) power (c) voltage (d) the flow of charge
12. 12.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
13. 13.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
14. 14.📏 How many milliamperes (mA) is 0.58 A?
15. 15.📏 How many ohms (Ω) is 2.7 kΩ?
16. 16.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 1000 (d) 100
17. 17.Which of these is measured in ohms (Ω)? (a) power (b) the flow of charge (c) voltage (d) resistance
18. 18.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
19. 19.📏 How many milliamperes (mA) is 1.67 A?
20. 20.Which of these is measured in volts (V)? (a) voltage (b) power (c) current (d) how much a part resists
21. 21.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
22. 22.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
23. 23.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the pipe colour (d) the water pressure
24. 24.True or false: the ammeter measures voltage. (a) True (b) False
25. 25.Which of these is measured in watts (W)? (a) current (b) voltage (c) how much a part resists (d) power
26. 26.True or false: current is measured in amperes (A). (a) False (b) True
27. 27.True or false: resistance is measured in ohms (Ω). (a) False (b) True
28. 28.📏 How many kilowatts (kW) is 4250 W? =
29. 29.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
30. 30.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
31. 31.📏 How many amperes (A) is 1900 mA? =
32. 32.True or false: power is measured in amperes (A). (a) False (b) True
33. 33.True or false: the voltmeter measures current. (a) False (b) True
34. 34.True or false: the voltmeter measures voltage. (a) True (b) False
35. 35.📏 How many milliamperes (mA) is 2.2 A?
36. 36.True or false: energy used each second is measured in volts (V). (a) False (b) True
37. 37.True or false: the ammeter measures current. (a) True (b) False
38. 38.📏 How many amperes (A) is 2310 mA? =
39. 39.📏 How many milliamperes (mA) is 2.87 A?
40. 40.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)

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