Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 90 · 40 questions

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

1. 1.Which drawing is the symbol for an LED? (a) a straight line (b) two equal parallel lines (c) many long-short pairs (d) triangle, bar and arrows
2. 2.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a circle with V inside (c) many long-short pairs (d) triangle, bar and arrows
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) resistor (c) switch (d) battery
4. 4.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a circle with V inside (c) triangle against a bar (d) one tall, one short bar
5. 5.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
6. 6.True or false: two or more cell symbols is the symbol for an LED. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) cell (d) capacitor
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) voltmeter (c) switch (d) battery
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
11. 11.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) switch (c) LED (d) diode
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) LED (c) ammeter (d) voltmeter
13. 13.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
14. 14.True or false: a straight line is the symbol for a wire. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) ammeter (c) junction (d) switch
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) bulb (c) wire (d) diode
17. 17.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a long and a short line (c) a circle with A inside (d) a circle with V inside
18. 18.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) two equal parallel lines (c) one tall, one short bar (d) a dot where wires meet
19. 19.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) capacitor (c) junction (d) wire
20. 20.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
21. 21.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a straight line (c) a plain rectangle (d) a line lifted at a gap
22. 22.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) capacitor (c) LED (d) ammeter
23. 23.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
24. 24.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) cell (c) resistor (d) wire
26. 26.True or false: triangle, bar and arrows is the symbol for a voltmeter. (a) True (b) False
27. 27.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False
28. 28.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) triangle, bar and arrows (c) many long-short pairs (d) a circle with M inside
29. 29.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
30. 30.True or false: triangle against a bar is the symbol for an ammeter. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) junction (c) switch (d) voltmeter
32. 32.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) ammeter (c) bulb (d) cell
34. 34.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a straight line (c) two or more cell symbols (d) a circle with a cross
35. 35.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
36. 36.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with an X in it (c) a circle with V inside (d) two equal parallel lines
37. 37.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) capacitor (c) junction (d) cell
38. 38.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
39. 39.Which drawing is the symbol for a resistor? (a) a straight line (b) two equal parallel lines (c) a small empty box (d) a circle with an X in it
40. 40.Which drawing is the symbol for a wire? (a) a straight line (b) a line lifted at a gap (c) a plain rectangle (d) a circle with M inside

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