Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 97 · 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 cross is the symbol for a bulb. (a) False (b) True
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
3. 3.True or false: triangle against a bar is the symbol for an LED. (a) True (b) False
4. 4.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a small empty box (c) a circle with A inside (d) triangle against a bar
5. 5.Which drawing is the symbol for a diode? (a) a plain rectangle (b) many long-short pairs (c) triangle, bar and arrows (d) triangle against a bar
6. 6.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) one tall, one short bar (c) a long and a short line (d) a line lifted at a gap
7. 7.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) battery (c) wire (d) motor
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) voltmeter (d) diode
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) battery (c) motor (d) ammeter
10. 10.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with V inside (d) one tall, one short bar
11. 11.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) ammeter (c) battery (d) bulb
13. 13.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) switch (c) battery (d) bulb
15. 15.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) junction (c) diode (d) LED
16. 16.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) resistor (c) LED (d) motor
17. 17.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) wire (c) LED (d) junction
18. 18.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a plain rectangle (c) a circle with V inside (d) many long-short pairs
19. 19.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a line lifted at a gap (c) a circle with V inside (d) a circle with M inside
20. 20.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
21. 21.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a circle with A inside (c) a straight line (d) a long and a short line
22. 22.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a circle with V inside (c) a long and a short line (d) a straight line
23. 23.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with M inside (c) a circle with an X in it (d) triangle, bar and arrows
24. 24.True or false: one tall, one short bar is the symbol for a voltmeter. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) motor (c) resistor (d) ammeter
26. 26.Which drawing is the symbol for a battery? (a) a circle with A inside (b) a circle with a cross (c) many long-short pairs (d) a dot where wires meet
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) capacitor (c) battery (d) wire
28. 28.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
29. 29.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
30. 30.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) LED (c) junction (d) switch
32. 32.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a circle with V inside (c) a line lifted at a gap (d) two or more cell symbols
33. 33.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
34. 34.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
35. 35.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) switch (c) ammeter (d) diode
37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) junction (d) diode
38. 38.True or false: a circle with V inside is the symbol for an ammeter. (a) True (b) False
39. 39.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a circle with M inside (c) a straight line (d) a small empty box
40. 40.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True

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