Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 885 · 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 hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
2. 2.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a small empty box (c) a line lifted at a gap (d) a straight line
3. 3.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a straight line (c) a circle with V inside (d) a circle with a cross
4. 4.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) two equal parallel lines (c) one tall, one short bar (d) two or more cell symbols
5. 5.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) ammeter (c) capacitor (d) junction
6. 6.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with a cross (c) a circle with A inside (d) many long-short pairs
7. 7.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
8. 8.Which drawing is the symbol for a motor? (a) a circle with M inside (b) two or more cell symbols (c) a small empty box (d) a circle with V inside
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
10. 10.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) a circle with A inside (c) a circle with V inside (d) a small empty box
11. 11.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) many long-short pairs (c) a circle with an X in it (d) a line lifted at a gap
12. 12.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) switch (c) diode (d) voltmeter
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
14. 14.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with M inside (c) a long and a short line (d) triangle, bar and arrows
15. 15.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) cell (c) resistor (d) battery
17. 17.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
18. 18.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with M inside (c) a dot where wires meet (d) a circle with A inside
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) ammeter (c) cell (d) resistor
20. 20.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
21. 21.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) LED (c) junction (d) switch
23. 23.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) LED (c) junction (d) battery
25. 25.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a dot where wires meet (c) a circle with an X in it (d) a plain rectangle
26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) LED (c) switch (d) capacitor
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) junction (c) resistor (d) cell
28. 28.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) capacitor (c) cell (d) battery
29. 29.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
30. 30.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with a cross (c) a line lifted at a gap (d) many long-short pairs
31. 31.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) diode (c) switch (d) motor
33. 33.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
34. 34.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
35. 35.Which drawing is the symbol for an LED? (a) a circle with V inside (b) a straight line (c) triangle, bar and arrows (d) a small empty box
36. 36.Which drawing is the symbol for a battery? (a) a circle with a cross (b) many long-short pairs (c) a dot where wires meet (d) one tall, one short bar
37. 37.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a plain rectangle (c) many long-short pairs (d) a dot where wires meet
38. 38.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
39. 39.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
40. 40.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False

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