Electronics Worksheet: Circuit Symbols

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

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