Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 702 · 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.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
2. 2.Which drawing is the symbol for an LED? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with V inside (d) a circle with M inside
3. 3.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a circle with V inside (c) a circle with M inside (d) a circle with A inside
4. 4.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) ammeter (c) bulb (d) LED
5. 5.Which drawing is the symbol for a cell? (a) a plain rectangle (b) triangle, bar and arrows (c) triangle against a bar (d) a long and a short line
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) wire (c) LED (d) motor
8. 8.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
9. 9.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with a cross (c) a long and a short line (d) a circle with M inside
10. 10.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
11. 11.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) two or more cell symbols (c) a plain rectangle (d) two equal parallel lines
12. 12.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) resistor (c) battery (d) wire
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
14. 14.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) junction (c) battery (d) switch
16. 16.Which drawing is the symbol for a resistor? (a) a long and a short line (b) one tall, one short bar (c) a circle with a cross (d) a small empty box
17. 17.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two equal parallel lines (c) a small empty box (d) a plain rectangle
18. 18.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) capacitor (c) resistor (d) motor
19. 19.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) motor (c) battery (d) resistor
20. 20.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a circle with M inside (c) triangle against a bar (d) a plain rectangle
21. 21.True or false: a straight line is the symbol for a wire. (a) False (b) True
22. 22.Which drawing is the symbol for an ammeter? (a) a small empty box (b) a circle with A inside (c) one tall, one short bar (d) two equal parallel lines
23. 23.Which drawing is the symbol for a battery? (a) a circle with a cross (b) many long-short pairs (c) a small empty box (d) a dot where wires meet
24. 24.True or false: many long-short pairs is the symbol for a voltmeter. (a) True (b) False
25. 25.Which drawing is the symbol for a junction? (a) a small empty box (b) a dot where wires meet (c) a straight line (d) triangle, bar and arrows
26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) ammeter (c) junction (d) bulb
27. 27.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) motor (c) cell (d) battery
29. 29.True or false: a dot where wires meet is the symbol for a wire. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) junction (c) motor (d) ammeter
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) capacitor (c) bulb (d) battery
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) ammeter (d) capacitor
33. 33.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
34. 34.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
35. 35.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
36. 36.True or false: a dot where wires meet is the symbol for an ammeter. (a) False (b) True
37. 37.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) one tall, one short bar (c) triangle against a bar (d) many long-short pairs
38. 38.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
40. 40.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True

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