Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 968 · 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 triangle, bar and arrows? (a) resistor (b) bulb (c) diode (d) LED
2. 2.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle, bar and arrows (c) a circle with a cross (d) a circle with an X in it
3. 3.True or false: a small empty box is the symbol for a capacitor. (a) False (b) True
4. 4.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) two or more cell symbols (c) a circle with an X in it (d) a circle with A inside
5. 5.✏️ 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
6. 6.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) junction (c) wire (d) motor
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) ammeter (c) LED (d) motor
8. 8.True or false: a straight line is the symbol for a wire. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) junction (c) cell (d) motor
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) resistor (c) motor (d) ammeter
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) junction (c) bulb (d) switch
12. 12.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
13. 13.Which drawing is the symbol for a junction? (a) a straight line (b) a line lifted at a gap (c) two or more cell symbols (d) a dot where wires meet
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
15. 15.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) triangle, bar and arrows (c) triangle against a bar (d) a circle with V inside
16. 16.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
17. 17.True or false: a circle with a cross is the symbol for a motor. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) LED (d) bulb
19. 19.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) switch (c) capacitor (d) cell
20. 20.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
21. 21.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) a long and a short line (c) two equal parallel lines (d) a small empty box
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) bulb (c) ammeter (d) junction
23. 23.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with V inside (c) a dot where wires meet (d) many long-short pairs
24. 24.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with M inside (c) a small empty box (d) a circle with a cross
25. 25.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) bulb (c) diode (d) resistor
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) motor (c) bulb (d) LED
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) bulb (c) capacitor (d) junction
28. 28.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
29. 29.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
30. 30.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) wire (d) motor
31. 31.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) capacitor (c) junction (d) resistor
33. 33.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a small empty box (c) a circle with M inside (d) many long-short pairs
34. 34.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with M inside (c) a long and a short line (d) a circle with a cross
35. 35.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
36. 36.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
37. 37.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) triangle, bar and arrows (c) a circle with an X in it (d) a circle with V inside
38. 38.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a small empty box (c) a circle with a cross (d) triangle, bar and arrows
39. 39.Which drawing is the symbol for a cell? (a) a plain rectangle (b) one tall, one short bar (c) triangle, bar and arrows (d) a small empty box
40. 40.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a straight line (c) a circle with M inside (d) a circle with a cross

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