Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 533 · 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 bulb? (a) a circle with M inside (b) many long-short pairs (c) a circle with a cross (d) one tall, one short bar
2. 2.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) battery (c) motor (d) cell
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
4. 4.True or false: a circle with A inside is the symbol for a diode. (a) True (b) False
5. 5.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a small empty box (c) triangle, bar and arrows (d) a circle with V inside
6. 6.Which drawing is the symbol for a diode? (a) a plain rectangle (b) triangle against a bar (c) a line lifted at a gap (d) a circle with M inside
7. 7.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
8. 8.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
10. 10.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False
11. 11.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) triangle against a bar (c) a plain rectangle (d) a circle with M inside
12. 12.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a line lifted at a gap (c) a plain rectangle (d) one tall, one short bar
13. 13.True or false: a long and a short line is the symbol for a switch. (a) False (b) True
14. 14.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) diode (c) capacitor (d) LED
16. 16.Which drawing is the symbol for an LED? (a) a circle with a cross (b) a circle with V inside (c) triangle, bar and arrows (d) two equal parallel lines
17. 17.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) ammeter (c) LED (d) resistor
18. 18.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) battery (c) ammeter (d) voltmeter
20. 20.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a plain rectangle (c) a circle with a cross (d) a long and a short line
21. 21.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
22. 22.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a dot where wires meet (c) triangle, bar and arrows (d) a straight line
23. 23.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
25. 25.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with A inside (c) one tall, one short bar (d) a plain rectangle
26. 26.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) wire (c) battery (d) resistor
27. 27.True or false: a straight line is the symbol for a wire. (a) False (b) True
28. 28.True or false: two or more cell symbols is the symbol for an ammeter. (a) False (b) True
29. 29.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a small empty box (c) two or more cell symbols (d) triangle against a bar
30. 30.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) diode (c) junction (d) battery
31. 31.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
32. 32.True or false: many long-short pairs is the symbol for a capacitor. (a) False (b) True
33. 33.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
34. 34.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
35. 35.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a long and a short line (c) two or more cell symbols (d) triangle, bar and arrows
36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) battery (c) switch (d) wire
37. 37.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with A inside (c) a circle with M inside (d) triangle, bar and arrows
38. 38.True or false: a circle with M inside is the symbol for a wire. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) resistor (c) junction (d) battery
40. 40.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) diode (d) voltmeter

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