Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 516 · 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.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) motor (c) capacitor (d) cell
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) wire (c) ammeter (d) junction
3. 3.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) LED (c) junction (d) capacitor
4. 4.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with a cross (c) a straight line (d) triangle, bar and arrows
5. 5.True or false: a long and a short line is the symbol for a bulb. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) junction (c) motor (d) diode
7. 7.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) many long-short pairs (c) two or more cell symbols (d) a small empty box
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) resistor (c) junction (d) bulb
9. 9.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) cell (c) bulb (d) diode
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) voltmeter (c) LED (d) diode
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) voltmeter (c) wire (d) diode
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) wire (c) switch (d) resistor
13. 13.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
15. 15.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) a straight line (c) a plain rectangle (d) a circle with A inside
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
17. 17.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) junction (c) resistor (d) switch
18. 18.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
19. 19.True or false: a line lifted at a gap is the symbol for a junction. (a) True (b) False
20. 20.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a small empty box (c) a plain rectangle (d) a circle with a cross
21. 21.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
22. 22.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a plain rectangle (c) a circle with V inside (d) a line lifted at a gap
23. 23.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a plain rectangle (c) a long and a short line (d) two equal parallel lines
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) capacitor (c) battery (d) ammeter
25. 25.True or false: a dot where wires meet is the symbol for a motor. (a) False (b) True
26. 26.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
27. 27.Which drawing is the symbol for a junction? (a) a circle with A inside (b) two equal parallel lines (c) a dot where wires meet (d) a straight line
28. 28.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) capacitor (c) ammeter (d) motor
29. 29.Which drawing is the symbol for a diode? (a) triangle against a bar (b) two or more cell symbols (c) a straight line (d) many long-short pairs
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) LED (c) ammeter (d) junction
31. 31.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
32. 32.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a circle with A inside (c) many long-short pairs (d) a circle with V inside
33. 33.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
34. 34.True or false: a long and a short line is the symbol for a junction. (a) True (b) False
35. 35.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
36. 36.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
37. 37.Which drawing is the symbol for an LED? (a) a plain rectangle (b) triangle, bar and arrows (c) many long-short pairs (d) triangle against a bar
38. 38.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) voltmeter (c) battery (d) bulb
39. 39.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
40. 40.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True

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