Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 436 · 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: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
2. 2.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) bulb (c) diode (d) LED
4. 4.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
5. 5.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) switch (c) bulb (d) motor
8. 8.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) many long-short pairs (c) a circle with V inside (d) a circle with an X in it
9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) ammeter (c) capacitor (d) resistor
10. 10.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
11. 11.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with V inside (c) a circle with a cross (d) a circle with A inside
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) cell (c) switch (d) junction
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) voltmeter (c) resistor (d) switch
14. 14.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
15. 15.True or false: one tall, one short bar is the symbol for a bulb. (a) False (b) True
16. 16.True or false: a straight line is the symbol for a wire. (a) False (b) True
17. 17.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a small empty box (c) a line lifted at a gap (d) a circle with M inside
18. 18.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
19. 19.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
20. 20.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
21. 21.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) two or more cell symbols (c) a circle with a cross (d) a circle with M inside
22. 22.True or false: many long-short pairs is the symbol for a diode. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) wire (c) junction (d) capacitor
24. 24.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a circle with M inside (c) one tall, one short bar (d) a plain rectangle
25. 25.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) many long-short pairs (c) two or more cell symbols (d) a plain rectangle
26. 26.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) triangle, bar and arrows (c) a circle with a cross (d) a line lifted at a gap
27. 27.Which drawing is the symbol for a diode? (a) a circle with A inside (b) triangle against a bar (c) a circle with an X in it (d) a small empty box
28. 28.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) voltmeter (c) resistor (d) motor
29. 29.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) a long and a short line (c) two equal parallel lines (d) a straight line
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) capacitor (c) resistor (d) bulb
31. 31.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) ammeter (c) cell (d) LED
32. 32.True or false: a circle with M inside is the symbol for an LED. (a) True (b) False
33. 33.True or false: a straight line is the symbol for an LED. (a) False (b) True
34. 34.True or false: a circle with M inside is the symbol for a battery. (a) False (b) True
35. 35.True or false: a circle with an X in it is the symbol for a diode. (a) True (b) False
36. 36.Which drawing is the symbol for a junction? (a) a plain rectangle (b) a dot where wires meet (c) a long and a short line (d) two or more cell symbols
37. 37.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) diode (c) cell (d) motor
38. 38.True or false: a plain rectangle is the symbol for a junction. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) switch (c) bulb (d) LED
40. 40.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) one tall, one short bar (c) triangle, bar and arrows (d) a plain rectangle

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