Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 73 · 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: a circle with A inside is the symbol for an ammeter. (a) False (b) True
2. 2.Which drawing is the symbol for a bulb? (a) a long and a short line (b) triangle, bar and arrows (c) two equal parallel lines (d) a circle with an X in it
3. 3.Which drawing is the symbol for a wire? (a) a plain rectangle (b) triangle, bar and arrows (c) a straight line (d) many long-short pairs
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
5. 5.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
6. 6.Which drawing is the symbol for a motor? (a) a circle with V inside (b) a circle with a cross (c) a circle with M inside (d) triangle, bar and arrows
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) bulb (c) switch (d) voltmeter
8. 8.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) many long-short pairs (c) a dot where wires meet (d) a line lifted at a gap
9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) motor (c) diode (d) battery
10. 10.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a line lifted at a gap (c) a small empty box (d) triangle against a bar
11. 11.✏️ 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
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) switch (c) LED (d) capacitor
13. 13.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
14. 14.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a plain rectangle (c) a circle with an X in it (d) a long and a short line
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
16. 16.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) LED (c) junction (d) ammeter
18. 18.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
19. 19.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) a line lifted at a gap (c) a circle with A inside (d) triangle against a bar
20. 20.True or false: a small empty box is the symbol for a battery. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) motor (c) diode (d) LED
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) junction (c) ammeter (d) LED
23. 23.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) LED (c) cell (d) wire
24. 24.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) diode (c) switch (d) motor
25. 25.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) junction (c) voltmeter (d) motor
27. 27.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a small empty box (d) two or more cell symbols
28. 28.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) capacitor (c) ammeter (d) battery
29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) battery (c) LED (d) motor
31. 31.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) a dot where wires meet (c) triangle, bar and arrows (d) two equal parallel lines
32. 32.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) bulb (c) switch (d) LED
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) junction (d) wire
34. 34.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
35. 35.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
36. 36.Which drawing is the symbol for a cell? (a) a straight line (b) a dot where wires meet (c) one tall, one short bar (d) a circle with A inside
37. 37.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a circle with V inside (c) a circle with A inside (d) a long and a short line
38. 38.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
39. 39.Which drawing is the symbol for a bulb? (a) a small empty box (b) a straight line (c) a circle with a cross (d) a circle with V inside
40. 40.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a long and a short line (c) a small empty box (d) a circle with an X in it

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