Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 548 · 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 resistor? (a) a line lifted at a gap (b) two or more cell symbols (c) one tall, one short bar (d) a small empty box
2. 2.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) triangle against a bar (c) a circle with A inside (d) a circle with an X in it
3. 3.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
4. 4.Which drawing is the symbol for an ammeter? (a) a straight line (b) a circle with A inside (c) a circle with M inside (d) a circle with an X in it
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) cell (c) wire (d) motor
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) bulb (c) diode (d) cell
7. 7.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False
8. 8.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a long and a short line (c) a line lifted at a gap (d) one tall, one short bar
9. 9.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) cell (c) LED (d) capacitor
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) resistor (c) bulb (d) LED
11. 11.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
13. 13.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) switch (c) LED (d) battery
15. 15.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
17. 17.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with a cross (c) triangle, bar and arrows (d) a small empty box
18. 18.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) resistor (c) cell (d) wire
19. 19.Which drawing is the symbol for a diode? (a) a circle with a cross (b) a circle with V inside (c) a small empty box (d) triangle against a bar
20. 20.Which drawing is the symbol for a switch? (a) a circle with M inside (b) triangle against a bar (c) a circle with an X in it (d) a line lifted at a gap
21. 21.Which drawing is the symbol for a battery? (a) a circle with V inside (b) triangle against a bar (c) triangle, bar and arrows (d) many long-short pairs
22. 22.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a circle with a cross (c) a plain rectangle (d) a line lifted at a gap
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) junction (c) motor (d) battery
24. 24.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
25. 25.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) one tall, one short bar (c) many long-short pairs (d) a circle with an X in it
26. 26.True or false: a circle with V inside is the symbol for a motor. (a) True (b) False
27. 27.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
28. 28.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with V inside (c) a straight line (d) one tall, one short bar
29. 29.True or false: a circle with V inside is the symbol for a switch. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) wire (c) capacitor (d) junction
31. 31.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) voltmeter (c) LED (d) wire
32. 32.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
33. 33.True or false: a straight line is the symbol for an LED. (a) True (b) False
34. 34.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) bulb (c) battery (d) motor
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) capacitor (c) voltmeter (d) battery
37. 37.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) many long-short pairs (c) a straight line (d) a circle with M inside
38. 38.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) cell (c) switch (d) junction
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) ammeter (c) junction (d) motor
40. 40.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) junction (c) resistor (d) ammeter

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