Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 160 · 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) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
2. 2.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with an X in it (c) one tall, one short bar (d) many long-short pairs
3. 3.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
4. 4.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) triangle, bar and arrows (c) a circle with an X in it (d) a plain rectangle
5. 5.Which drawing is the symbol for a wire? (a) a straight line (b) a small empty box (c) many long-short pairs (d) triangle, bar and arrows
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
7. 7.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a dot where wires meet (c) two equal parallel lines (d) a circle with a cross
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) cell (c) wire (d) bulb
9. 9.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
10. 10.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
11. 11.Which drawing is the symbol for a battery? (a) a small empty box (b) triangle, bar and arrows (c) a long and a short line (d) two or more cell symbols
12. 12.Which drawing is the symbol for a junction? (a) a small empty box (b) a long and a short line (c) a dot where wires meet (d) a circle with M inside
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
14. 14.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) False (b) True
15. 15.Which drawing is the symbol for a cell? (a) a long and a short line (b) many long-short pairs (c) two equal parallel lines (d) triangle, bar and arrows
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) diode (c) motor (d) switch
17. 17.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) wire (c) cell (d) resistor
19. 19.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with M inside (c) many long-short pairs (d) a line lifted at a gap
20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) motor (c) battery (d) diode
21. 21.True or false: a circle with a cross is the symbol for a cell. (a) False (b) True
22. 22.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) battery (c) ammeter (d) bulb
24. 24.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) resistor (c) switch (d) wire
25. 25.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
26. 26.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
27. 27.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
28. 28.True or false: a small empty box is the symbol for a wire. (a) True (b) False
29. 29.True or false: a small empty box is the symbol for a cell. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) ammeter (c) cell (d) resistor
31. 31.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
32. 32.True or false: a straight line is the symbol for a switch. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) wire (c) ammeter (d) capacitor
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) battery (c) voltmeter (d) wire
35. 35.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) resistor (c) LED (d) cell
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) capacitor (c) bulb (d) battery
37. 37.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) a straight line (c) a circle with A inside (d) two or more cell symbols
38. 38.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
39. 39.Which drawing is the symbol for a motor? (a) a circle with A inside (b) a circle with V inside (c) two or more cell symbols (d) a circle with M inside
40. 40.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) resistor (c) junction (d) cell

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