Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 568 · 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 cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
2. 2.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with V inside (c) a circle with M inside (d) triangle, bar and arrows
3. 3.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
4. 4.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
5. 5.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
6. 6.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) diode (c) switch (d) wire
8. 8.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a circle with A inside (c) a line lifted at a gap (d) two or more cell symbols
9. 9.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a long and a short line (c) a circle with V inside (d) a dot where wires meet
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) ammeter (c) junction (d) battery
11. 11.True or false: a dot where wires meet is the symbol for an LED. (a) True (b) False
12. 12.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a circle with an X in it (c) a plain rectangle (d) a circle with M inside
13. 13.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) capacitor (c) battery (d) wire
14. 14.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) capacitor (c) cell (d) wire
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
16. 16.True or false: a straight line is the symbol for a resistor. (a) False (b) True
17. 17.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) capacitor (c) bulb (d) resistor
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) bulb (c) switch (d) battery
20. 20.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
21. 21.Which drawing is the symbol for a battery? (a) a circle with M inside (b) a circle with a cross (c) two or more cell symbols (d) a long and a short line
22. 22.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) cell (c) switch (d) battery
23. 23.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) two equal parallel lines (c) a circle with M inside (d) triangle against a bar
24. 24.Which drawing is the symbol for a junction? (a) a circle with A inside (b) one tall, one short bar (c) a plain rectangle (d) a dot where wires meet
25. 25.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a long and a short line (c) a circle with M inside (d) a circle with a cross
26. 26.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a circle with an X in it (c) two equal parallel lines (d) two or more cell symbols
27. 27.Which drawing is the symbol for a bulb? (a) a long and a short line (b) one tall, one short bar (c) a circle with an X in it (d) two equal parallel lines
28. 28.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) resistor (c) wire (d) motor
29. 29.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) many long-short pairs (c) a circle with V inside (d) a small empty box
30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) motor (c) bulb (d) capacitor
31. 31.Which drawing is the symbol for a battery? (a) a straight line (b) a small empty box (c) a plain rectangle (d) many long-short pairs
32. 32.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
33. 33.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
34. 34.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) ammeter (c) junction (d) bulb
36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) motor (c) resistor (d) junction
37. 37.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a straight line (c) a circle with M inside (d) two or more cell symbols
38. 38.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a dot where wires meet (c) a straight line (d) a small empty box
39. 39.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) switch (c) bulb (d) wire
40. 40.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) resistor (c) bulb (d) LED

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