Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 806 · 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.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
2. 2.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) wire (c) resistor (d) cell
3. 3.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
4. 4.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a circle with V inside (c) many long-short pairs (d) a dot where wires meet
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) resistor (c) voltmeter (d) bulb
6. 6.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) ammeter (c) bulb (d) diode
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) resistor (c) battery (d) cell
9. 9.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
10. 10.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) triangle, bar and arrows (c) triangle against a bar (d) a circle with a cross
11. 11.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a dot where wires meet (d) a circle with a cross
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) junction (c) diode (d) voltmeter
14. 14.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with V inside (c) two equal parallel lines (d) a circle with A inside
15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) switch (c) battery (d) cell
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) bulb (c) LED (d) ammeter
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
18. 18.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
19. 19.Which drawing is the symbol for a switch? (a) many long-short pairs (b) triangle against a bar (c) a circle with V inside (d) a line lifted at a gap
20. 20.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a circle with A inside (c) a circle with V inside (d) triangle against a bar
21. 21.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a straight line (c) a circle with A inside (d) a circle with an X in it
22. 22.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) voltmeter (c) motor (d) bulb
24. 24.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
25. 25.True or false: a circle with a cross is the symbol for a resistor. (a) False (b) True
26. 26.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) a long and a short line (c) a circle with a cross (d) a straight line
27. 27.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) one tall, one short bar (c) two equal parallel lines (d) triangle against a bar
28. 28.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a plain rectangle (c) many long-short pairs (d) a long and a short line
29. 29.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
30. 30.True or false: a straight line is the symbol for an LED. (a) True (b) False
31. 31.True or false: a long and a short line is the symbol for a resistor. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) motor (c) diode (d) LED
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) resistor (c) ammeter (d) voltmeter
34. 34.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) resistor (c) voltmeter (d) bulb
35. 35.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) wire (c) battery (d) bulb
36. 36.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
37. 37.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a dot where wires meet (c) a circle with a cross (d) a circle with M inside
38. 38.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
39. 39.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with a cross (c) many long-short pairs (d) two or more cell symbols
40. 40.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) many long-short pairs (c) a circle with a cross (d) triangle, bar and arrows

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