Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 611 · 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.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
2. 2.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
3. 3.📏 How many amperes (A) is 1060 mA? =
4. 4.📏 How many kilo-ohms (kΩ) is 8900 Ω? =
5. 5.📏 How many kilowatts (kW) is 3150 W? =
6. 6.True or false: the ammeter measures voltage. (a) False (b) True
7. 7.Which of these is measured in watts (W)? (a) current (b) how much a part resists (c) power (d) voltage
8. 8.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
9. 9.📏 How many kilo-ohms (kΩ) is 700 Ω? =
10. 10.📏 How many milliamperes (mA) is 0.82 A?
11. 11.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) voltage (c) the flow of charge (d) power
12. 12.True or false: the ammeter measures current. (a) True (b) False
13. 13.📏 How many milliamperes (mA) is 1.46 A?
14. 14.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 100 (d) 1000
15. 15.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) resistance (c) energy used each second (d) voltage
16. 16.True or false: resistance is measured in volts (V). (a) False (b) True
17. 17.True or false: power is measured in amperes (A). (a) True (b) False
18. 18.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
19. 19.True or false: the voltmeter measures current. (a) False (b) True
20. 20.Which of these is measured in volts (V)? (a) current (b) voltage (c) resistance (d) the flow of charge
21. 21.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
22. 22.📏 How many milliamperes (mA) is 2.79 A?
23. 23.Which of these is measured in amperes (A)? (a) how much a part resists (b) energy used each second (c) the flow of charge (d) power
24. 24.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
25. 25.📏 How many kilowatts (kW) is 700 W? =
26. 26.📏 How many milliamperes (mA) is 2.18 A?
27. 27.📏 How many ohms (Ω) is 2.3 kΩ?
28. 28.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) a bigger tank
29. 29.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 1000 (d) 100
30. 30.📏 How many watts (W) is 0.5 kW?
31. 31.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) the pipe colour
32. 32.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
33. 33.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the pipe colour (c) the water tank lid (d) the tap handle
34. 34.📏 How many milliamperes (mA) is 1.59 A?
35. 35.📏 How many kilowatts (kW) is 3450 W? =
36. 36.True or false: power is measured in watts (W). (a) False (b) True
37. 37.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
38. 38.📏 How many kilowatts (kW) is 250 W? =
39. 39.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
40. 40.Which of these is measured in watts (W)? (a) how much a part resists (b) current (c) the flow of charge (d) energy used each second

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