Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 408 · 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 resistor? (a) one tall, one short bar (b) triangle against a bar (c) a circle with an X in it (d) a plain rectangle
2. 2.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
5. 5.True or false: a plain rectangle is the symbol for a wire. (a) True (b) False
6. 6.✏️ 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
7. 7.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a dot where wires meet (c) a long and a short line (d) triangle against a bar
8. 8.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) LED (c) cell (d) ammeter
9. 9.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) capacitor (c) cell (d) diode
10. 10.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with a cross (c) a small empty box (d) triangle against a bar
11. 11.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
12. 12.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) triangle, bar and arrows (c) a circle with an X in it (d) a plain rectangle
13. 13.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
14. 14.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
15. 15.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) battery (c) junction (d) LED
17. 17.True or false: two or more cell symbols is the symbol for a wire. (a) True (b) False
18. 18.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
19. 19.Which drawing is the symbol for a junction? (a) a long and a short line (b) one tall, one short bar (c) a plain rectangle (d) a dot where wires meet
20. 20.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) cell (c) resistor (d) LED
22. 22.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
23. 23.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) one tall, one short bar (d) a circle with V inside
24. 24.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a circle with M inside (c) a circle with V inside (d) a circle with a cross
25. 25.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
26. 26.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) triangle against a bar (c) two or more cell symbols (d) a straight line
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) motor (c) voltmeter (d) resistor
28. 28.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) ammeter (c) motor (d) capacitor
30. 30.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
31. 31.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a long and a short line (c) a straight line (d) triangle, bar and arrows
32. 32.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
33. 33.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
34. 34.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) triangle against a bar (c) a small empty box (d) a circle with V inside
35. 35.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
36. 36.Which drawing is the symbol for a battery? (a) a circle with A inside (b) many long-short pairs (c) a line lifted at a gap (d) two equal parallel lines
37. 37.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) one tall, one short bar (c) a straight line (d) a circle with an X in it
38. 38.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) battery (c) voltmeter (d) wire
39. 39.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) diode (c) bulb (d) switch
40. 40.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True

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