Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 395 · 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) neither line (b) both lines (c) the shorter line (d) the longer line
2. 2.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
3. 3.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
4. 4.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) a circle with a cross (c) a dot where wires meet (d) triangle, bar and arrows
5. 5.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a small empty box (c) two equal parallel lines (d) a line lifted at a gap
6. 6.Which drawing is the symbol for a bulb? (a) a small empty box (b) two equal parallel lines (c) a circle with a cross (d) a line lifted at a gap
7. 7.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) motor (c) battery (d) capacitor
8. 8.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a circle with A inside (c) a circle with an X in it (d) many long-short pairs
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
10. 10.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
11. 11.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
12. 12.Which drawing is the symbol for a diode? (a) many long-short pairs (b) triangle against a bar (c) a circle with V inside (d) a circle with a cross
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) diode (c) voltmeter (d) resistor
14. 14.True or false: a line lifted at a gap is the symbol for a capacitor. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) switch (c) bulb (d) resistor
16. 16.✏️ 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
17. 17.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
18. 18.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a straight line (c) a long and a short line (d) a circle with A inside
19. 19.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle, bar and arrows (c) a dot where wires meet (d) a long and a short line
20. 20.Which drawing is the symbol for a wire? (a) a straight line (b) one tall, one short bar (c) a circle with M inside (d) a circle with an X in it
21. 21.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) LED (c) junction (d) switch
23. 23.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) bulb (c) ammeter (d) voltmeter
24. 24.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) diode (c) battery (d) LED
26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) junction (c) LED (d) bulb
27. 27.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with A inside (c) a small empty box (d) a line lifted at a gap
28. 28.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
29. 29.Which drawing is the symbol for a junction? (a) a circle with a cross (b) a plain rectangle (c) a long and a short line (d) a dot where wires meet
30. 30.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) a plain rectangle (c) a dot where wires meet (d) two equal parallel lines
31. 31.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
32. 32.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True
33. 33.True or false: a circle with A inside is the symbol for a battery. (a) False (b) True
34. 34.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a circle with an X in it (c) a plain rectangle (d) one tall, one short bar
35. 35.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) battery (c) cell (d) junction
36. 36.True or false: a line lifted at a gap is the symbol for a cell. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) capacitor (c) ammeter (d) battery
38. 38.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) cell (c) junction (d) diode
39. 39.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
40. 40.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True

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