Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 192 · 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 a circle with an X in it? (a) cell (b) wire (c) bulb (d) LED
2. 2.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) bulb (c) LED (d) diode
3. 3.True or false: a circle with a cross is the symbol for a resistor. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) resistor (c) diode (d) capacitor
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) ammeter (c) cell (d) motor
7. 7.True or false: two equal parallel lines is the symbol for a diode. (a) True (b) False
8. 8.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a long and a short line (c) a small empty box (d) two equal parallel lines
9. 9.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a plain rectangle (c) a line lifted at a gap (d) two or more cell symbols
10. 10.True or false: triangle against a bar is the symbol for a resistor. (a) False (b) True
11. 11.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
12. 12.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a line lifted at a gap (c) triangle against a bar (d) a long and a short line
13. 13.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) bulb (c) switch (d) diode
15. 15.True or false: a small empty box is the symbol for a diode. (a) True (b) False
16. 16.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) two equal parallel lines (c) many long-short pairs (d) triangle, bar and arrows
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
18. 18.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a small empty box (c) many long-short pairs (d) a dot where wires meet
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) LED (c) cell (d) junction
20. 20.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
21. 21.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
22. 22.Which drawing is the symbol for a resistor? (a) a straight line (b) a circle with a cross (c) two or more cell symbols (d) a plain rectangle
23. 23.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
24. 24.True or false: a straight line is the symbol for a resistor. (a) True (b) False
25. 25.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
26. 26.Which drawing is the symbol for a wire? (a) a long and a short line (b) triangle, bar and arrows (c) two or more cell symbols (d) a straight line
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) ammeter (c) switch (d) cell
28. 28.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
29. 29.True or false: a line lifted at a gap is the symbol for a bulb. (a) True (b) False
30. 30.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) one tall, one short bar (c) a circle with a cross (d) a circle with A inside
31. 31.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) ammeter (c) motor (d) LED
33. 33.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) junction (c) switch (d) battery
34. 34.Which drawing is the symbol for a diode? (a) a circle with A inside (b) triangle, bar and arrows (c) one tall, one short bar (d) triangle against a bar
35. 35.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
36. 36.True or false: two or more cell symbols is the symbol for a wire. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) capacitor (c) junction (d) switch
38. 38.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
39. 39.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) triangle against a bar (c) a circle with a cross (d) triangle, bar and arrows
40. 40.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True

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