Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 361 · 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 circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) ammeter (c) switch (d) resistor
2. 2.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a straight line (c) two or more cell symbols (d) a circle with V inside
3. 3.Which drawing is the symbol for a bulb? (a) a small empty box (b) a plain rectangle (c) two equal parallel lines (d) a circle with a cross
4. 4.✏️ 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
5. 5.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) one tall, one short bar (c) many long-short pairs (d) a circle with A inside
6. 6.Which drawing is the symbol for a diode? (a) triangle against a bar (b) two or more cell symbols (c) a plain rectangle (d) one tall, one short bar
7. 7.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
8. 8.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
9. 9.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
10. 10.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) ammeter (c) wire (d) resistor
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
14. 14.True or false: a line lifted at a gap is the symbol for an LED. (a) False (b) True
15. 15.Which drawing is the symbol for a switch? (a) a long and a short line (b) a circle with M inside (c) a line lifted at a gap (d) a circle with an X in it
16. 16.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) triangle against a bar (c) a circle with M inside (d) a small empty box
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) motor (c) battery (d) voltmeter
18. 18.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) cell (c) junction (d) resistor
19. 19.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) cell (c) junction (d) wire
20. 20.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) wire (d) voltmeter
21. 21.Which drawing is the symbol for a battery? (a) a small empty box (b) two equal parallel lines (c) a circle with A inside (d) many long-short pairs
22. 22.Which drawing is the symbol for a cell? (a) a long and a short line (b) two equal parallel lines (c) a line lifted at a gap (d) a dot where wires meet
23. 23.True or false: a circle with V inside is the symbol for a switch. (a) False (b) True
24. 24.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) a circle with an X in it (c) a circle with V inside (d) two equal parallel lines
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) voltmeter (c) capacitor (d) wire
26. 26.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) LED (c) battery (d) switch
27. 27.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) diode (c) voltmeter (d) junction
29. 29.True or false: a circle with an X in it is the symbol for a diode. (a) True (b) False
30. 30.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) two equal parallel lines (c) a circle with V inside (d) a circle with M inside
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) LED (d) battery
32. 32.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) cell (c) capacitor (d) ammeter
34. 34.True or false: a long and a short line is the symbol for a capacitor. (a) True (b) False
35. 35.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
36. 36.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a small empty box (c) a long and a short line (d) triangle, bar and arrows
37. 37.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) bulb (c) capacitor (d) motor
39. 39.True or false: triangle against a bar is the symbol for a junction. (a) True (b) False
40. 40.Which drawing is the symbol for an LED? (a) a circle with V inside (b) triangle, bar and arrows (c) a circle with A inside (d) one tall, one short bar

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