Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 638 · 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.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
2. 2.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
3. 3.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a long and a short line (c) one tall, one short bar (d) triangle against a bar
4. 4.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) two equal parallel lines (c) triangle against a bar (d) a dot where wires meet
5. 5.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
6. 6.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) motor (c) diode (d) resistor
8. 8.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
9. 9.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
11. 11.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a line lifted at a gap (c) a small empty box (d) a circle with M inside
12. 12.Which drawing is the symbol for a cell? (a) a long and a short line (b) a plain rectangle (c) a small empty box (d) triangle, bar and arrows
13. 13.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) two equal parallel lines (c) a plain rectangle (d) one tall, one short bar
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
15. 15.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a small empty box (c) a line lifted at a gap (d) triangle against a bar
16. 16.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a straight line (c) a circle with V inside (d) a long and a short line
17. 17.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a dot where wires meet (c) a circle with an X in it (d) a straight line
18. 18.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
19. 19.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) battery (c) switch (d) LED
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) switch (c) resistor (d) capacitor
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) LED (c) ammeter (d) motor
23. 23.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) switch (c) motor (d) wire
24. 24.True or false: two equal parallel lines is the symbol for a diode. (a) True (b) False
25. 25.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a straight line (c) a circle with a cross (d) two or more cell symbols
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) motor (c) battery (d) bulb
27. 27.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with a cross (c) a circle with M inside (d) a line lifted at a gap
28. 28.Which drawing is the symbol for a motor? (a) a circle with M inside (b) two or more cell symbols (c) a circle with an X in it (d) a small empty box
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) bulb (c) resistor (d) ammeter
30. 30.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
31. 31.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a line lifted at a gap (c) a long and a short line (d) a dot where wires meet
32. 32.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) wire (c) battery (d) voltmeter
34. 34.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) bulb (c) switch (d) junction
35. 35.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) voltmeter (c) battery (d) ammeter
37. 37.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
38. 38.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a circle with V inside (c) a circle with A inside (d) a long and a short line
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) wire (c) bulb (d) cell

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