Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 596 · 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.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
2. 2.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
4. 4.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) cell (c) wire (d) capacitor
5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) battery (c) voltmeter (d) diode
6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) wire (c) battery (d) LED
7. 7.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a long and a short line (c) a circle with an X in it (d) triangle, bar and arrows
8. 8.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
9. 9.True or false: a straight line is the symbol for a wire. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) battery (c) capacitor (d) bulb
11. 11.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) cell (c) capacitor (d) bulb
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) ammeter (c) capacitor (d) cell
13. 13.True or false: one tall, one short bar is the symbol for a bulb. (a) False (b) True
14. 14.Which drawing is the symbol for a battery? (a) a plain rectangle (b) many long-short pairs (c) triangle, bar and arrows (d) a dot where wires meet
15. 15.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with V inside (c) a dot where wires meet (d) triangle, bar and arrows
16. 16.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) resistor (c) wire (d) voltmeter
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) switch (c) battery (d) bulb
18. 18.True or false: a small empty box is the symbol for a voltmeter. (a) True (b) False
19. 19.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a long and a short line (c) a circle with a cross (d) a plain rectangle
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) switch (c) diode (d) motor
21. 21.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
22. 22.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with an X in it (c) a long and a short line (d) triangle against a bar
23. 23.True or false: a small empty box is the symbol for a wire. (a) True (b) False
24. 24.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two equal parallel lines (c) a circle with a cross (d) a line lifted at a gap
25. 25.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) many long-short pairs (c) one tall, one short bar (d) a circle with an X in it
26. 26.True or false: a long and a short line is the symbol for a resistor. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) wire (c) motor (d) voltmeter
28. 28.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a circle with A inside (c) triangle against a bar (d) a line lifted at a gap
29. 29.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) LED (c) battery (d) cell
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) switch (c) battery (d) cell
31. 31.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) switch (c) resistor (d) junction
32. 32.Which drawing is the symbol for a diode? (a) many long-short pairs (b) a dot where wires meet (c) a long and a short line (d) triangle against a bar
33. 33.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
34. 34.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
35. 35.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with an X in it (c) a straight line (d) a long and a short line
36. 36.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
37. 37.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
38. 38.True or false: two equal parallel lines is the symbol for a wire. (a) True (b) False
39. 39.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
40. 40.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a small empty box (c) a dot where wires meet (d) a line lifted at a gap

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