Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 628 · 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 kilo-ohms (kΩ) is 2600 Ω? =
2. 2.📏 How many ohms (Ω) is 4.7 kΩ?
3. 3.True or false: voltage is measured in volts (V). (a) False (b) True
4. 4.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 10 (d) 60
5. 5.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
6. 6.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
7. 7.📏 How many kilo-ohms (kΩ) is 8500 Ω? =
8. 8.📏 How many kilowatts (kW) is 400 W? =
9. 9.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
10. 10.📏 How many milliamperes (mA) is 1.09 A?
11. 11.📏 How many kilo-ohms (kΩ) is 7900 Ω? =
12. 12.True or false: the ammeter measures voltage. (a) True (b) False
13. 13.Which of these is measured in ohms (Ω)? (a) voltage (b) energy used each second (c) current (d) how much a part resists
14. 14.📏 How many milliamperes (mA) is 0.65 A?
15. 15.True or false: energy used each second is measured in volts (V). (a) False (b) True
16. 16.📏 How many milliamperes (mA) is 2.07 A?
17. 17.True or false: the voltmeter measures current. (a) True (b) False
18. 18.📏 How many ohms (Ω) is 3 kΩ?
19. 19.📏 How many kilowatts (kW) is 1200 W? =
20. 20.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) the flow of water (d) a narrow pipe
21. 21.📏 How many milliamperes (mA) is 0.37 A?
22. 22.📏 How many ohms (Ω) is 5.9 kΩ?
23. 23.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
24. 24.Which of these is measured in volts (V)? (a) the flow of charge (b) energy used each second (c) power (d) the push of a cell
25. 25.📏 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
26. 26.📏 How many ohms (Ω) is 1.4 kΩ?
27. 27.True or false: current is measured in amperes (A). (a) False (b) True
28. 28.📏 How many kilo-ohms (kΩ) is 1600 Ω? =
29. 29.📏 Which unit measures voltage? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
30. 30.Which of these is measured in volts (V)? (a) power (b) voltage (c) current (d) how much a part resists
31. 31.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
32. 32.True or false: the voltmeter measures voltage. (a) True (b) False
33. 33.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) a bigger tank (d) the flow of water
34. 34.📏 How many milliamperes (mA) is 0.92 A?
35. 35.True or false: how much a part resists is measured in volts (V). (a) False (b) True
36. 36.True or false: the ammeter is joined in series. (a) True (b) False
37. 37.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
38. 38.True or false: energy used each second is measured in watts (W). (a) True (b) False
39. 39.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 1024 (d) 10
40. 40.📏 How many kilo-ohms (kΩ) is 4000 Ω? =

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