Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 255 · 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, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
3. 3.✏️ 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
4. 4.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a circle with M inside (c) a circle with an X in it (d) triangle, bar and arrows
5. 5.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a line lifted at a gap (c) a plain rectangle (d) triangle against a bar
6. 6.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
7. 7.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) many long-short pairs (c) a straight line (d) a small empty box
8. 8.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a circle with M inside (c) two equal parallel lines (d) a small empty box
9. 9.Which drawing is the symbol for a diode? (a) many long-short pairs (b) two equal parallel lines (c) a circle with A inside (d) triangle against a bar
10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) LED (c) capacitor (d) diode
11. 11.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) ammeter (c) switch (d) cell
12. 12.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) diode (c) switch (d) motor
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) cell (c) diode (d) switch
14. 14.True or false: a circle with a cross is the symbol for a battery. (a) False (b) True
15. 15.True or false: a long and a short line is the symbol for a junction. (a) True (b) False
16. 16.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a straight line (c) a circle with V inside (d) triangle, bar and arrows
17. 17.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) triangle, bar and arrows (c) a circle with an X in it (d) a circle with A inside
18. 18.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) motor (c) cell (d) voltmeter
20. 20.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) junction (c) cell (d) battery
22. 22.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
23. 23.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) many long-short pairs (c) one tall, one short bar (d) a circle with a cross
24. 24.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) switch (c) junction (d) LED
25. 25.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) wire (c) junction (d) resistor
26. 26.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
27. 27.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) switch (c) wire (d) motor
29. 29.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
30. 30.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) switch (c) wire (d) diode
32. 32.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) ammeter (d) diode
33. 33.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a line lifted at a gap (c) many long-short pairs (d) two or more cell symbols
34. 34.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with an X in it (c) many long-short pairs (d) a plain rectangle
35. 35.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) resistor (c) switch (d) cell
36. 36.Which drawing is the symbol for a bulb? (a) a straight line (b) a circle with V inside (c) a circle with an X in it (d) one tall, one short bar
37. 37.True or false: a plain rectangle is the symbol for a capacitor. (a) False (b) True
38. 38.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with an X in it (c) a circle with V inside (d) a circle with a cross
39. 39.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) motor (c) diode (d) ammeter
40. 40.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False

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