Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 340 · 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: two or more cell symbols is the symbol for a diode. (a) True (b) False
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
3. 3.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a plain rectangle (c) a dot where wires meet (d) a circle with a cross
4. 4.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a plain rectangle (d) a circle with M inside
5. 5.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) ammeter (c) cell (d) resistor
6. 6.True or false: a line lifted at a gap is the symbol for a capacitor. (a) False (b) True
7. 7.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a long and a short line (c) a circle with an X in it (d) two or more cell symbols
8. 8.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) battery (c) LED (d) ammeter
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
10. 10.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) bulb (c) wire (d) switch
11. 11.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
12. 12.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) a circle with V inside (c) one tall, one short bar (d) a dot where wires meet
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) motor (c) voltmeter (d) junction
14. 14.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a circle with V inside (c) a plain rectangle (d) a circle with A inside
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) voltmeter (c) cell (d) capacitor
16. 16.True or false: a circle with V inside is the symbol for a capacitor. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) resistor (c) LED (d) motor
18. 18.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) bulb (c) diode (d) switch
19. 19.Which drawing is the symbol for a wire? (a) a plain rectangle (b) a straight line (c) a circle with M inside (d) a circle with V inside
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) cell (c) ammeter (d) LED
21. 21.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
22. 22.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) a circle with A inside (c) a circle with an X in it (d) triangle, bar and arrows
23. 23.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
25. 25.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
26. 26.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a circle with A inside (c) one tall, one short bar (d) triangle against a bar
27. 27.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with a cross (c) a circle with V inside (d) a plain rectangle
28. 28.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
29. 29.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
30. 30.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a straight line (c) a circle with an X in it (d) a long and a short line
31. 31.True or false: a line lifted at a gap is the symbol for an ammeter. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) motor (c) capacitor (d) cell
33. 33.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with M inside (c) a small empty box (d) one tall, one short bar
34. 34.True or false: a circle with a cross is the symbol for a motor. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) diode (c) capacitor (d) ammeter
36. 36.Which drawing is the symbol for a resistor? (a) a straight line (b) two equal parallel lines (c) a plain rectangle (d) a circle with M inside
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) ammeter (c) diode (d) motor
38. 38.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
39. 39.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
40. 40.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False

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