Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 582 · 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.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
2. 2.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) cell (c) voltmeter (d) resistor
5. 5.True or false: a dot where wires meet is the symbol for a switch. (a) False (b) True
6. 6.True or false: a circle with an X in it is the symbol for an LED. (a) False (b) True
7. 7.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
8. 8.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
9. 9.Which drawing is the symbol for a resistor? (a) a straight line (b) a circle with M inside (c) a circle with V inside (d) a small empty box
10. 10.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a plain rectangle (c) a straight line (d) a dot where wires meet
11. 11.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) cell (c) switch (d) battery
14. 14.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle against a bar (c) a circle with a cross (d) one tall, one short bar
15. 15.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) diode (c) voltmeter (d) junction
17. 17.Which drawing is the symbol for a wire? (a) a straight line (b) many long-short pairs (c) two or more cell symbols (d) one tall, one short bar
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) battery (c) voltmeter (d) junction
19. 19.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle, bar and arrows (c) many long-short pairs (d) two equal parallel lines
20. 20.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) wire (c) cell (d) resistor
21. 21.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
22. 22.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a circle with V inside (c) triangle, bar and arrows (d) a circle with A inside
23. 23.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a circle with a cross (c) triangle against a bar (d) two or more cell symbols
24. 24.Which drawing is the symbol for a bulb? (a) a long and a short line (b) many long-short pairs (c) a circle with a cross (d) a small empty box
25. 25.Which drawing is the symbol for an LED? (a) a long and a short line (b) a circle with M inside (c) many long-short pairs (d) triangle, bar and arrows
26. 26.Which drawing is the symbol for a switch? (a) many long-short pairs (b) two or more cell symbols (c) a circle with a cross (d) a line lifted at a gap
27. 27.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
28. 28.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
29. 29.Which drawing is the symbol for a cell? (a) a circle with A inside (b) two or more cell symbols (c) a line lifted at a gap (d) a long and a short line
30. 30.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) resistor (c) battery (d) capacitor
31. 31.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) triangle against a bar (c) a circle with V inside (d) a plain rectangle
32. 32.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) ammeter (c) diode (d) battery
34. 34.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) LED (c) wire (d) resistor
35. 35.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) voltmeter (c) cell (d) wire
37. 37.True or false: a circle with A inside is the symbol for a capacitor. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) voltmeter (c) ammeter (d) junction
39. 39.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
40. 40.Which drawing is the symbol for a cell? (a) triangle against a bar (b) triangle, bar and arrows (c) a circle with A inside (d) one tall, one short bar

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