Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 259 · 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.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a circle with A inside (c) one tall, one short bar (d) a straight line
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) voltmeter (c) motor (d) ammeter
3. 3.True or false: a straight line is the symbol for a wire. (a) True (b) False
4. 4.True or false: a long and a short line is the symbol for a capacitor. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) capacitor (c) battery (d) ammeter
6. 6.Which drawing is the symbol for a battery? (a) a long and a short line (b) triangle, bar and arrows (c) many long-short pairs (d) a circle with a cross
7. 7.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with an X in it (c) triangle, bar and arrows (d) many long-short pairs
8. 8.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) capacitor (c) ammeter (d) diode
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) resistor (c) junction (d) wire
11. 11.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
12. 12.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with a cross (c) a long and a short line (d) one tall, one short bar
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
15. 15.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a circle with V inside (c) a plain rectangle (d) a circle with a cross
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) junction (c) motor (d) cell
17. 17.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) wire (c) cell (d) motor
18. 18.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) LED (c) diode (d) resistor
20. 20.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) capacitor (c) battery (d) cell
22. 22.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with M inside (c) a line lifted at a gap (d) a circle with A inside
23. 23.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) junction (c) switch (d) capacitor
24. 24.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
25. 25.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
26. 26.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
27. 27.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) one tall, one short bar (c) a dot where wires meet (d) a circle with M inside
28. 28.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) capacitor (c) wire (d) cell
31. 31.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) resistor (c) wire (d) LED
32. 32.True or false: a circle with a cross is the symbol for a motor. (a) False (b) True
33. 33.Which drawing is the symbol for a cell? (a) a long and a short line (b) a line lifted at a gap (c) a straight line (d) a circle with M inside
34. 34.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
35. 35.True or false: a small empty box is the symbol for an ammeter. (a) False (b) True
36. 36.Which drawing is the symbol for a switch? (a) a plain rectangle (b) two equal parallel lines (c) triangle against a bar (d) a line lifted at a gap
37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) ammeter (c) battery (d) diode
38. 38.True or false: many long-short pairs is the symbol for a diode. (a) True (b) False
39. 39.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a straight line (c) a circle with an X in it (d) one tall, one short bar
40. 40.True or false: a small empty box is the symbol for a battery. (a) False (b) True

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