Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 834 · 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) the longer line (b) both lines (c) neither line (d) the shorter line
2. 2.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) triangle, bar and arrows (c) a plain rectangle (d) a circle with a cross
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
4. 4.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a line lifted at a gap (c) a long and a short line (d) triangle, bar and arrows
5. 5.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) motor (c) cell (d) LED
6. 6.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a circle with A inside (c) triangle, bar and arrows (d) a small empty box
7. 7.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) two or more cell symbols (c) one tall, one short bar (d) two equal parallel lines
8. 8.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a straight line (c) two equal parallel lines (d) triangle, bar and arrows
9. 9.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) two or more cell symbols (d) a circle with a cross
10. 10.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) capacitor (c) cell (d) resistor
11. 11.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) cell (c) capacitor (d) motor
12. 12.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) LED (c) capacitor (d) resistor
13. 13.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a small empty box (c) a long and a short line (d) a circle with M inside
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) junction (c) switch (d) bulb
15. 15.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) triangle against a bar (c) a circle with V inside (d) a circle with A inside
16. 16.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
17. 17.✏️ 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
18. 18.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) switch (c) battery (d) wire
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) capacitor (c) motor (d) bulb
20. 20.Which drawing is the symbol for a wire? (a) a straight line (b) a dot where wires meet (c) a circle with a cross (d) a circle with M inside
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) voltmeter (c) ammeter (d) capacitor
22. 22.Which drawing is the symbol for a battery? (a) a straight line (b) triangle, bar and arrows (c) two equal parallel lines (d) two or more cell symbols
23. 23.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) capacitor (c) LED (d) bulb
25. 25.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
26. 26.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
27. 27.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) voltmeter (c) switch (d) resistor
29. 29.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) battery (c) capacitor (d) bulb
30. 30.True or false: a circle with V inside is the symbol for a capacitor. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) voltmeter (c) motor (d) switch
32. 32.Which drawing is the symbol for a diode? (a) a circle with V inside (b) a circle with A inside (c) triangle against a bar (d) two equal parallel lines
33. 33.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
34. 34.True or false: a dot where wires meet is the symbol for a switch. (a) False (b) True
35. 35.True or false: a straight line is the symbol for a battery. (a) True (b) False
36. 36.True or false: a small empty box is the symbol for a junction. (a) False (b) True
37. 37.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
38. 38.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
39. 39.Which drawing is the symbol for a battery? (a) a circle with a cross (b) triangle against a bar (c) many long-short pairs (d) a long and a short line
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) cell (c) wire (d) resistor

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