Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 767 · 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 a motor? (a) a circle with an X in it (b) a circle with M inside (c) a dot where wires meet (d) a small empty box
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) resistor (c) capacitor (d) LED
3. 3.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) triangle against a bar (c) a line lifted at a gap (d) a small empty box
4. 4.Which drawing is the symbol for a diode? (a) a small empty box (b) a circle with an X in it (c) triangle against a bar (d) a line lifted at a gap
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
6. 6.Which drawing is the symbol for a junction? (a) a long and a short line (b) a straight line (c) a circle with a cross (d) a dot where wires meet
7. 7.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
8. 8.True or false: two or more cell symbols is the symbol for a capacitor. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) battery (c) switch (d) capacitor
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
11. 11.✏️ 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
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) capacitor (c) bulb (d) resistor
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) switch (c) resistor (d) junction
14. 14.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) switch (c) diode (d) junction
16. 16.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
17. 17.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
18. 18.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
19. 19.True or false: many long-short pairs is the symbol for a junction. (a) True (b) False
20. 20.Which drawing is the symbol for an ammeter? (a) a small empty box (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with A inside
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) ammeter (c) junction (d) voltmeter
22. 22.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
23. 23.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) bulb (c) wire (d) junction
25. 25.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) cell (c) battery (d) wire
26. 26.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) diode (c) voltmeter (d) battery
28. 28.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) battery (c) capacitor (d) bulb
29. 29.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
30. 30.True or false: many long-short pairs is the symbol for a diode. (a) True (b) False
31. 31.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with a cross (c) a straight line (d) a circle with V inside
32. 32.Which drawing is the symbol for a wire? (a) two equal parallel lines (b) a straight line (c) a dot where wires meet (d) many long-short pairs
33. 33.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) LED (c) junction (d) capacitor
34. 34.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a line lifted at a gap (c) a small empty box (d) a circle with A inside
35. 35.True or false: a circle with a cross is the symbol for a battery. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) battery (c) voltmeter (d) resistor
37. 37.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) one tall, one short bar (c) two equal parallel lines (d) a small empty box
38. 38.True or false: triangle against a bar is the symbol for a junction. (a) True (b) False
39. 39.True or false: a straight line is the symbol for a wire. (a) False (b) True
40. 40.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False

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