Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 565 · 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 is joined in series? (a) voltmeter (b) ammeter
2. 2.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the pipe colour (c) the water tank lid (d) the water pressure
3. 3.Which of these is measured in watts (W)? (a) voltage (b) the push of a cell (c) power (d) resistance
4. 4.📏 How many milliamperes (mA) is 1.74 A?
5. 5.True or false: the ammeter measures voltage. (a) True (b) False
6. 6.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
7. 7.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a bigger tank (c) a narrow pipe (d) the water pressure
8. 8.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
9. 9.Which of these is measured in ohms (Ω)? (a) power (b) resistance (c) energy used each second (d) voltage
10. 10.📏 How many watts (W) is 4.7 kW?
11. 11.📏 Which unit measures energy used each second? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
12. 12.📏 How many watts (W) is 4.2 kW?
13. 13.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
14. 14.True or false: resistance is measured in volts (V). (a) True (b) False
15. 15.📏 How many watts (W) is 3.3 kW?
16. 16.📏 How many kilo-ohms (kΩ) is 100 Ω? =
17. 17.True or false: the voltmeter is joined across a part. (a) False (b) True
18. 18.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
19. 19.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) how much a part resists (c) current (d) voltage
20. 20.📏 How many kilowatts (kW) is 3600 W? =
21. 21.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
22. 22.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
23. 23.True or false: current is measured in amperes (A). (a) True (b) False
24. 24.📏 How many kilo-ohms (kΩ) is 1900 Ω? =
25. 25.True or false: voltage is measured in amperes (A). (a) True (b) False
26. 26.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 1000 (d) 100
27. 27.📏 Which unit measures voltage? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
28. 28.Which of these is measured in amperes (A)? (a) energy used each second (b) the push of a cell (c) the flow of charge (d) how much a part resists
29. 29.📏 How many amperes (A) is 1070 mA? =
30. 30.📏 How many milliamperes (mA) is 0.68 A?
31. 31.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
32. 32.📏 How many kilo-ohms (kΩ) is 7100 Ω? =
33. 33.📏 How many milliamperes (mA) is 2.23 A?
34. 34.Which of these is measured in volts (V)? (a) energy used each second (b) the push of a cell (c) the flow of charge (d) power
35. 35.📏 How many milliamperes (mA) is 1.08 A?
36. 36.True or false: power is measured in amperes (A). (a) True (b) False
37. 37.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
38. 38.True or false: voltage is measured in volts (V). (a) True (b) False
39. 39.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
40. 40.True or false: power is measured in watts (W). (a) False (b) True

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