Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 528 · 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.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) bulb (c) capacitor (d) cell
2. 2.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) ammeter (c) bulb (d) LED
3. 3.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
4. 4.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with A inside (c) a small empty box (d) a circle with a cross
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
6. 6.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
7. 7.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a small empty box (c) a circle with an X in it (d) a circle with V inside
8. 8.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) cell (c) LED (d) battery
9. 9.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) bulb (c) cell (d) resistor
11. 11.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) triangle, bar and arrows (c) two or more cell symbols (d) a small empty box
12. 12.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
13. 13.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a circle with V inside (c) a straight line (d) a circle with an X in it
14. 14.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
15. 15.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
16. 16.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
17. 17.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
18. 18.True or false: a straight line is the symbol for a diode. (a) False (b) True
19. 19.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) capacitor (c) switch (d) cell
21. 21.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
22. 22.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a circle with a cross (c) a long and a short line (d) two equal parallel lines
23. 23.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
24. 24.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
25. 25.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
26. 26.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a circle with V inside (c) triangle, bar and arrows (d) a line lifted at a gap
27. 27.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) battery (c) motor (d) capacitor
28. 28.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
29. 29.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) one tall, one short bar (c) triangle against a bar (d) a circle with V inside
30. 30.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) triangle against a bar (c) a circle with a cross (d) a plain rectangle
31. 31.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
32. 32.Which drawing is the symbol for a cell? (a) many long-short pairs (b) two or more cell symbols (c) a plain rectangle (d) one tall, one short bar
33. 33.Which drawing is the symbol for a battery? (a) a long and a short line (b) a line lifted at a gap (c) a circle with M inside (d) two or more cell symbols
34. 34.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
35. 35.Which drawing is the symbol for a diode? (a) a circle with M inside (b) triangle, bar and arrows (c) many long-short pairs (d) triangle against a bar
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) capacitor (c) resistor (d) diode
37. 37.True or false: a circle with V inside is the symbol for a junction. (a) False (b) True
38. 38.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) one tall, one short bar (c) a long and a short line (d) a circle with M inside
39. 39.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) junction (c) motor (d) resistor
40. 40.True or false: triangle, bar and arrows is the symbol for a resistor. (a) False (b) True

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