Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 529 · 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 cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
2. 2.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) voltmeter (c) resistor (d) bulb
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
4. 4.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) diode (c) cell (d) switch
6. 6.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) a plain rectangle (c) a circle with an X in it (d) two equal parallel lines
7. 7.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
8. 8.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
9. 9.Which drawing is the symbol for a diode? (a) a long and a short line (b) two equal parallel lines (c) triangle against a bar (d) many long-short pairs
10. 10.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
11. 11.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) wire (d) voltmeter
13. 13.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
14. 14.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a small empty box (c) a line lifted at a gap (d) many long-short pairs
15. 15.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
16. 16.Which drawing is the symbol for a battery? (a) a circle with a cross (b) many long-short pairs (c) a circle with V inside (d) triangle, bar and arrows
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) diode (c) LED (d) bulb
18. 18.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a long and a short line (c) a circle with a cross (d) a circle with A inside
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) capacitor (c) battery (d) voltmeter
20. 20.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) wire (c) ammeter (d) battery
21. 21.Which drawing is the symbol for a cell? (a) a long and a short line (b) two equal parallel lines (c) a circle with M inside (d) many long-short pairs
22. 22.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a dot where wires meet (c) triangle, bar and arrows (d) two equal parallel lines
23. 23.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) one tall, one short bar (c) a dot where wires meet (d) a circle with a cross
24. 24.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) triangle against a bar (c) triangle, bar and arrows (d) a small empty box
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) cell (c) capacitor (d) bulb
26. 26.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) motor (c) switch (d) battery
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) ammeter (c) motor (d) battery
28. 28.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a circle with a cross (c) a plain rectangle (d) a long and a short line
29. 29.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) battery (c) diode (d) voltmeter
30. 30.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
31. 31.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a dot where wires meet (c) two equal parallel lines (d) a long and a short line
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) switch (c) bulb (d) battery
33. 33.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) resistor (c) ammeter (d) junction
35. 35.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) wire (c) battery (d) ammeter
36. 36.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a dot where wires meet (c) many long-short pairs (d) a circle with an X in it
37. 37.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
38. 38.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
39. 39.True or false: two or more cell symbols is the symbol for a capacitor. (a) False (b) True
40. 40.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False

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