Electronics Worksheet: Circuit Symbols

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

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