Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 372 · 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.True or false: triangle, bar and arrows is the symbol for a switch. (a) True (b) False
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
3. 3.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) triangle, bar and arrows (c) a circle with M inside (d) one tall, one short bar
4. 4.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) resistor (c) diode (d) junction
5. 5.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) battery (c) ammeter (d) switch
6. 6.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
7. 7.Which drawing is the symbol for a capacitor? (a) a straight line (b) triangle against a bar (c) two equal parallel lines (d) a dot where wires meet
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) capacitor (c) LED (d) diode
9. 9.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) junction (c) motor (d) switch
11. 11.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) two equal parallel lines (c) a line lifted at a gap (d) many long-short pairs
12. 12.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) two or more cell symbols (c) a circle with A inside (d) a small empty box
13. 13.Which drawing is the symbol for a wire? (a) two equal parallel lines (b) a straight line (c) a long and a short line (d) triangle against a bar
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) bulb (c) cell (d) switch
15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) voltmeter (c) cell (d) LED
16. 16.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) two equal parallel lines (c) a circle with V inside (d) triangle, bar and arrows
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
18. 18.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) battery (c) wire (d) diode
20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) wire (c) cell (d) LED
21. 21.Which drawing is the symbol for a battery? (a) a circle with V inside (b) one tall, one short bar (c) a line lifted at a gap (d) two or more cell symbols
22. 22.True or false: a small empty box is the symbol for a junction. (a) True (b) False
23. 23.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a dot where wires meet (c) a line lifted at a gap (d) one tall, one short bar
24. 24.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
25. 25.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a circle with A inside (c) two or more cell symbols (d) a circle with M inside
26. 26.Which drawing is the symbol for a diode? (a) many long-short pairs (b) a small empty box (c) triangle against a bar (d) a circle with V inside
27. 27.True or false: one tall, one short bar is the symbol for a bulb. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) capacitor (c) motor (d) junction
29. 29.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
30. 30.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
31. 31.Which drawing is the symbol for a bulb? (a) a straight line (b) a dot where wires meet (c) a line lifted at a gap (d) a circle with an X in it
32. 32.True or false: many long-short pairs is the symbol for a junction. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) bulb (c) voltmeter (d) resistor
34. 34.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) LED (c) diode (d) junction
35. 35.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
36. 36.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
37. 37.True or false: many long-short pairs is the symbol for a wire. (a) False (b) True
38. 38.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
39. 39.True or false: a straight line is the symbol for a wire. (a) True (b) False
40. 40.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False

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