Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 368 · 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 a line lifted at a gap? (a) motor (b) capacitor (c) switch (d) LED
2. 2.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a small empty box (c) a circle with an X in it (d) a circle with V inside
3. 3.True or false: triangle against a bar is the symbol for a capacitor. (a) False (b) True
4. 4.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
6. 6.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) ammeter (c) voltmeter (d) wire
8. 8.Which drawing is the symbol for a switch? (a) triangle against a bar (b) a line lifted at a gap (c) triangle, bar and arrows (d) a plain rectangle
9. 9.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) LED (c) bulb (d) junction
10. 10.Which drawing is the symbol for a resistor? (a) a straight line (b) a long and a short line (c) one tall, one short bar (d) a plain rectangle
11. 11.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) bulb (c) diode (d) resistor
13. 13.✏️ 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
14. 14.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
15. 15.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle against a bar (c) many long-short pairs (d) a circle with V inside
16. 16.Which drawing is the symbol for an LED? (a) triangle against a bar (b) a plain rectangle (c) a small empty box (d) triangle, bar and arrows
17. 17.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) switch (c) cell (d) bulb
19. 19.Which drawing is the symbol for a cell? (a) triangle against a bar (b) one tall, one short bar (c) a circle with M inside (d) a circle with an X in it
20. 20.Which drawing is the symbol for a battery? (a) a circle with V inside (b) two or more cell symbols (c) a dot where wires meet (d) a circle with M inside
21. 21.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) triangle, bar and arrows (c) two equal parallel lines (d) a circle with V inside
22. 22.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) two or more cell symbols (c) a circle with A inside (d) a circle with V inside
23. 23.True or false: a circle with A inside is the symbol for a diode. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) diode (c) motor (d) switch
25. 25.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
26. 26.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
27. 27.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) junction (c) bulb (d) resistor
29. 29.Which drawing is the symbol for a diode? (a) triangle against a bar (b) one tall, one short bar (c) many long-short pairs (d) a dot where wires meet
30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) ammeter (c) diode (d) capacitor
31. 31.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
32. 32.True or false: triangle, bar and arrows is the symbol for a motor. (a) True (b) False
33. 33.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
34. 34.Which drawing is the symbol for a battery? (a) a circle with M inside (b) many long-short pairs (c) a small empty box (d) one tall, one short bar
35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
36. 36.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True
37. 37.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) LED (c) battery (d) motor
39. 39.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
40. 40.True or false: one tall, one short bar is the symbol for an LED. (a) True (b) False

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