Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 909 · 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: triangle against a bar is the symbol for a diode. (a) False (b) True
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) cell (c) switch (d) diode
3. 3.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) motor (c) capacitor (d) battery
4. 4.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) one tall, one short bar (c) a plain rectangle (d) a small empty box
5. 5.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a line lifted at a gap (c) a small empty box (d) a circle with an X in it
6. 6.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a straight line (c) one tall, one short bar (d) a circle with A inside
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
8. 8.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
10. 10.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
11. 11.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
12. 12.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) motor (c) voltmeter (d) switch
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) motor (c) cell (d) resistor
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) voltmeter (c) junction (d) capacitor
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) ammeter (c) battery (d) cell
17. 17.Which drawing is the symbol for a diode? (a) a circle with M inside (b) triangle against a bar (c) a small empty box (d) a circle with a cross
18. 18.Which drawing is the symbol for a capacitor? (a) a straight line (b) a circle with A inside (c) two equal parallel lines (d) a long and a short line
19. 19.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with a cross (c) a plain rectangle (d) one tall, one short bar
20. 20.True or false: a plain rectangle is the symbol for an LED. (a) True (b) False
21. 21.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with A inside (c) a circle with an X in it (d) many long-short pairs
22. 22.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
23. 23.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
24. 24.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
25. 25.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) triangle, bar and arrows (c) triangle against a bar (d) a plain rectangle
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) ammeter (c) cell (d) wire
27. 27.True or false: a straight line is the symbol for an ammeter. (a) False (b) True
28. 28.True or false: a straight line is the symbol for a wire. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) diode (c) switch (d) bulb
30. 30.True or false: a plain rectangle is the symbol for a wire. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) ammeter (c) LED (d) voltmeter
32. 32.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) switch (c) resistor (d) bulb
33. 33.Which drawing is the symbol for an LED? (a) a small empty box (b) a straight line (c) one tall, one short bar (d) triangle, bar and arrows
34. 34.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) diode (c) capacitor (d) switch
35. 35.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a line lifted at a gap (c) two or more cell symbols (d) two equal parallel lines
36. 36.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
37. 37.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
38. 38.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
40. 40.Which drawing is the symbol for a battery? (a) a circle with a cross (b) triangle against a bar (c) two equal parallel lines (d) many long-short pairs

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