Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 393 · 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.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) two equal parallel lines (c) triangle, bar and arrows (d) a circle with a cross
2. 2.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
4. 4.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) junction (c) motor (d) capacitor
6. 6.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
7. 7.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) cell (c) motor (d) resistor
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
10. 10.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) a small empty box (c) two equal parallel lines (d) a circle with A inside
11. 11.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) two or more cell symbols (c) a long and a short line (d) a line lifted at a gap
12. 12.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
13. 13.Which drawing is the symbol for a battery? (a) a straight line (b) a circle with M inside (c) many long-short pairs (d) a line lifted at a gap
14. 14.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
15. 15.Which drawing is the symbol for a cell? (a) a circle with A inside (b) two or more cell symbols (c) a circle with a cross (d) a long and a short line
16. 16.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) junction (c) motor (d) diode
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) LED (c) bulb (d) diode
18. 18.True or false: a small empty box is the symbol for a wire. (a) True (b) False
19. 19.Which drawing is the symbol for an LED? (a) a small empty box (b) a straight line (c) many long-short pairs (d) triangle, bar and arrows
20. 20.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
21. 21.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) triangle against a bar (c) two or more cell symbols (d) a straight line
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) junction (c) voltmeter (d) motor
23. 23.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) two equal parallel lines (c) a straight line (d) one tall, one short bar
24. 24.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) voltmeter (c) resistor (d) LED
25. 25.Which drawing is the symbol for a resistor? (a) a long and a short line (b) triangle, bar and arrows (c) one tall, one short bar (d) a small empty box
26. 26.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) cell (c) resistor (d) voltmeter
27. 27.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
28. 28.True or false: a circle with an X in it is the symbol for a resistor. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) LED (c) wire (d) switch
30. 30.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) junction (c) LED (d) resistor
31. 31.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a straight line (c) two equal parallel lines (d) triangle, bar and arrows
32. 32.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
33. 33.True or false: a circle with V inside is the symbol for a cell. (a) False (b) True
34. 34.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
35. 35.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
36. 36.True or false: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
37. 37.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) many long-short pairs (c) a straight line (d) one tall, one short bar
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) resistor (c) bulb (d) ammeter
39. 39.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) LED (c) bulb (d) capacitor

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