Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 216 · 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 cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
2. 2.✏️ 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
3. 3.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
4. 4.True or false: triangle, bar and arrows is the symbol for a switch. (a) True (b) False
5. 5.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) triangle, bar and arrows (c) triangle against a bar (d) a circle with A inside
6. 6.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
8. 8.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
9. 9.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a circle with M inside (c) a dot where wires meet (d) many long-short pairs
10. 10.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) capacitor (c) switch (d) cell
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) resistor (c) cell (d) LED
13. 13.Which drawing is the symbol for a switch? (a) a long and a short line (b) a line lifted at a gap (c) one tall, one short bar (d) a circle with A inside
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) junction (c) switch (d) motor
15. 15.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False
16. 16.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) many long-short pairs (c) a small empty box (d) one tall, one short bar
17. 17.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a dot where wires meet (c) triangle against a bar (d) a small empty box
18. 18.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) battery (c) diode (d) cell
19. 19.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) diode (c) cell (d) resistor
21. 21.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) resistor (c) cell (d) LED
22. 22.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a small empty box (c) a circle with a cross (d) a dot where wires meet
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) switch (c) diode (d) cell
24. 24.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a circle with A inside (c) a circle with M inside (d) one tall, one short bar
25. 25.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) bulb (c) cell (d) LED
26. 26.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False
27. 27.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) a small empty box (c) a circle with a cross (d) two equal parallel lines
28. 28.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a long and a short line (c) a circle with V inside (d) two or more cell symbols
29. 29.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
30. 30.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a long and a short line (c) a circle with V inside (d) a circle with A inside
31. 31.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
32. 32.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
33. 33.Which drawing is the symbol for a wire? (a) a small empty box (b) a long and a short line (c) two equal parallel lines (d) a straight line
34. 34.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) cell (d) LED
35. 35.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) diode (c) battery (d) LED
36. 36.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) voltmeter (c) bulb (d) wire
38. 38.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
39. 39.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a line lifted at a gap (c) two or more cell symbols (d) a small empty box
40. 40.True or false: a straight line is the symbol for an LED. (a) False (b) True

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