Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 453 · 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 wire? (a) a straight line (b) a circle with a cross (c) a plain rectangle (d) two equal parallel lines
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) motor (c) ammeter (d) junction
3. 3.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a circle with A inside (c) a long and a short line (d) a plain rectangle
4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) junction (c) LED (d) wire
5. 5.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
6. 6.Which drawing is the symbol for a cell? (a) a small empty box (b) a straight line (c) one tall, one short bar (d) a circle with A inside
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) ammeter (c) switch (d) cell
8. 8.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) voltmeter (c) bulb (d) LED
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) resistor (c) bulb (d) junction
11. 11.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a plain rectangle (c) a line lifted at a gap (d) many long-short pairs
12. 12.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) ammeter (c) LED (d) capacitor
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) battery (c) LED (d) bulb
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
15. 15.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a small empty box (c) triangle against a bar (d) a circle with a cross
16. 16.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) triangle, bar and arrows (c) a circle with A inside (d) triangle against a bar
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
18. 18.Which drawing is the symbol for a battery? (a) a straight line (b) a long and a short line (c) two equal parallel lines (d) many long-short pairs
19. 19.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
20. 20.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with V inside (c) a circle with an X in it (d) a circle with M inside
21. 21.True or false: a line lifted at a gap is the symbol for a capacitor. (a) False (b) True
22. 22.True or false: a straight line is the symbol for a wire. (a) False (b) True
23. 23.True or false: a dot where wires meet is the symbol for a voltmeter. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) diode (c) junction (d) motor
25. 25.Which drawing is the symbol for a battery? (a) a circle with M inside (b) two or more cell symbols (c) a circle with an X in it (d) a plain rectangle
26. 26.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
27. 27.True or false: a plain rectangle is the symbol for a battery. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) junction (c) resistor (d) LED
29. 29.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) capacitor (c) voltmeter (d) battery
30. 30.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
31. 31.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) many long-short pairs (c) a dot where wires meet (d) a small empty box
32. 32.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
33. 33.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) triangle against a bar (c) triangle, bar and arrows (d) two equal parallel lines
34. 34.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
35. 35.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) battery (c) wire (d) diode
37. 37.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) a plain rectangle (c) triangle against a bar (d) a long and a short line
38. 38.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a long and a short line (c) many long-short pairs (d) a circle with an X in it
39. 39.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) bulb (c) voltmeter (d) diode
40. 40.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a circle with a cross (c) a circle with M inside (d) a circle with V inside

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