Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 590 · 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 an ammeter? (a) two or more cell symbols (b) a circle with a cross (c) a circle with A inside (d) a circle with V inside
2. 2.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) wire (c) capacitor (d) switch
3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) LED (c) battery (d) wire
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) bulb (c) wire (d) diode
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
6. 6.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
7. 7.True or false: a dot where wires meet is the symbol for a resistor. (a) True (b) False
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) diode (c) wire (d) switch
10. 10.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a dot where wires meet (c) a circle with a cross (d) a straight line
11. 11.True or false: a plain rectangle is the symbol for a battery. (a) False (b) True
12. 12.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
13. 13.Which drawing is the symbol for a diode? (a) a plain rectangle (b) triangle against a bar (c) one tall, one short bar (d) a long and a short line
14. 14.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) cell (c) resistor (d) LED
15. 15.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with M inside (c) many long-short pairs (d) triangle, bar and arrows
16. 16.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) ammeter (d) cell
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) voltmeter (c) switch (d) bulb
18. 18.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with an X in it (c) a circle with A inside (d) a straight line
19. 19.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
20. 20.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
21. 21.True or false: triangle against a bar is the symbol for a voltmeter. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) motor (c) voltmeter (d) diode
23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) LED (b) junction (c) capacitor (d) cell
24. 24.True or false: many long-short pairs is the symbol for a capacitor. (a) False (b) True
25. 25.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a circle with an X in it (c) a circle with M inside (d) a small empty box
26. 26.True or false: a straight line is the symbol for a switch. (a) True (b) False
27. 27.True or false: a circle with M inside is the symbol for a diode. (a) False (b) True
28. 28.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) switch (c) voltmeter (d) LED
30. 30.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) LED (c) cell (d) motor
31. 31.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
32. 32.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
33. 33.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with a cross (c) a circle with A inside (d) a plain rectangle
34. 34.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle against a bar (c) a long and a short line (d) two or more cell symbols
35. 35.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) LED (c) cell (d) capacitor
36. 36.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
37. 37.Which drawing is the symbol for a cell? (a) a long and a short line (b) triangle against a bar (c) a circle with V inside (d) two or more cell symbols
38. 38.Which drawing is the symbol for a switch? (a) triangle against a bar (b) a line lifted at a gap (c) a small empty box (d) a long and a short line
39. 39.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
40. 40.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a small empty box (c) a long and a short line (d) a circle with M inside

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