Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 101 · 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) junction (b) ammeter (c) battery (d) cell
2. 2.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) cell (c) junction (d) LED
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
4. 4.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a small empty box (c) two equal parallel lines (d) a line lifted at a gap
5. 5.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) motor (c) voltmeter (d) battery
7. 7.Which drawing is the symbol for an LED? (a) a straight line (b) a plain rectangle (c) a long and a short line (d) triangle, bar and arrows
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
9. 9.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) triangle, bar and arrows (c) a plain rectangle (d) two equal parallel lines
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) switch (c) motor (d) capacitor
11. 11.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) voltmeter (c) wire (d) LED
13. 13.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
14. 14.True or false: a circle with a cross is the symbol for a capacitor. (a) True (b) False
15. 15.Which drawing is the symbol for a motor? (a) two equal parallel lines (b) a circle with M inside (c) a line lifted at a gap (d) a long and a short line
16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) voltmeter (c) motor (d) capacitor
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) wire (c) LED (d) ammeter
18. 18.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with V inside (c) a line lifted at a gap (d) a straight line
19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) capacitor (c) LED (d) diode
20. 20.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
21. 21.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a dot where wires meet (c) a circle with V inside (d) a small empty box
22. 22.True or false: one tall, one short bar is the symbol for a motor. (a) False (b) True
23. 23.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) diode (c) resistor (d) motor
25. 25.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with M inside (c) a circle with V inside (d) two equal parallel lines
26. 26.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
27. 27.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
28. 28.True or false: a circle with V inside is the symbol for a diode. (a) False (b) True
29. 29.True or false: a circle with M inside is the symbol for a voltmeter. (a) True (b) False
30. 30.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a straight line (c) a small empty box (d) a circle with A inside
31. 31.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
32. 32.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a long and a short line (c) a dot where wires meet (d) a circle with V inside
33. 33.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a circle with A inside (d) a circle with M inside
34. 34.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a small empty box (c) two or more cell symbols (d) one tall, one short bar
35. 35.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
36. 36.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
37. 37.True or false: a dot where wires meet is the symbol for a voltmeter. (a) False (b) True
38. 38.True or false: a circle with A inside is the symbol for a bulb. (a) False (b) True
39. 39.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
40. 40.True or false: a line lifted at a gap is the symbol for a battery. (a) False (b) True

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