Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 246 · 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 9500 Ω? =
2. 2.📏 How many kilo-ohms (kΩ) is 7000 Ω? =
3. 3.📏 How many watts (W) is 4.9 kW?
4. 4.Which of these is measured in ohms (Ω)? (a) power (b) current (c) how much a part resists (d) voltage
5. 5.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
6. 6.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the water pressure (d) the pipe colour
7. 7.📏 How many kilo-ohms (kΩ) is 2300 Ω? =
8. 8.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the pipe colour (d) the flow of water
9. 9.📏 How many ohms (Ω) is 3.6 kΩ?
10. 10.Which of these is measured in amperes (A)? (a) the push of a cell (b) energy used each second (c) the flow of charge (d) power
11. 11.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
12. 12.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 10 (d) 100
13. 13.📏 How many watts (W) is 1.4 kW?
14. 14.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
15. 15.Which of these is measured in watts (W)? (a) the flow of charge (b) power (c) the push of a cell (d) how much a part resists
16. 16.📏 How many ohms (Ω) is 2.8 kΩ?
17. 17.📏 How many kilo-ohms (kΩ) is 6900 Ω? =
18. 18.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
19. 19.📏 Which unit measures resistance? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
20. 20.Which of these is measured in watts (W)? (a) the flow of charge (b) current (c) energy used each second (d) voltage
21. 21.📏 How many ohms (Ω) is 2.3 kΩ?
22. 22.Which of these is measured in amperes (A)? (a) voltage (b) resistance (c) current (d) the push of a cell
23. 23.Which of these is measured in ohms (Ω)? (a) voltage (b) the push of a cell (c) current (d) resistance
24. 24.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
25. 25.📏 How many amperes (A) is 2500 mA? =
26. 26.True or false: the ammeter measures current. (a) True (b) False
27. 27.True or false: energy used each second is measured in watts (W). (a) True (b) False
28. 28.📏 How many ohms (Ω) is 7.2 kΩ?
29. 29.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
30. 30.📏 Which unit measures current? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
31. 31.📏 How many amperes (A) is 1160 mA? =
32. 32.True or false: resistance is measured in watts (W). (a) False (b) True
33. 33.True or false: the ammeter measures voltage. (a) False (b) True
34. 34.Which of these is measured in volts (V)? (a) voltage (b) power (c) energy used each second (d) the flow of charge
35. 35.📏 How many milliamperes (mA) is 2.3 A?
36. 36.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
37. 37.📏 How many ohms (Ω) is 2.1 kΩ?
38. 38.Which of these is measured in volts (V)? (a) current (b) how much a part resists (c) the push of a cell (d) the flow of charge
39. 39.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
40. 40.📏 Which unit measures the flow of charge? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)

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