Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 442 · 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) both lines (b) the longer line (c) the shorter line (d) neither line
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
3. 3.True or false: a straight line is the symbol for a wire. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) battery (c) ammeter (d) junction
5. 5.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
6. 6.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a dot where wires meet (c) a circle with A inside (d) two or more cell symbols
7. 7.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
8. 8.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
9. 9.Which drawing is the symbol for a cell? (a) a straight line (b) a long and a short line (c) two equal parallel lines (d) two or more cell symbols
10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) cell (c) bulb (d) battery
11. 11.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
12. 12.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) voltmeter (c) LED (d) resistor
13. 13.Which drawing is the symbol for a motor? (a) a circle with M inside (b) many long-short pairs (c) a circle with an X in it (d) two or more cell symbols
14. 14.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a circle with A inside (c) a long and a short line (d) two equal parallel lines
15. 15.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
16. 16.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
17. 17.Which drawing is the symbol for a battery? (a) a long and a short line (b) two equal parallel lines (c) many long-short pairs (d) triangle against a bar
18. 18.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a line lifted at a gap (c) a plain rectangle (d) a circle with V inside
19. 19.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
20. 20.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
21. 21.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a long and a short line (c) a circle with an X in it (d) a plain rectangle
22. 22.True or false: a circle with A inside is the symbol for a diode. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) resistor (c) bulb (d) diode
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) wire (c) bulb (d) ammeter
25. 25.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) motor (c) switch (d) battery
27. 27.Which drawing is the symbol for a wire? (a) a circle with A inside (b) many long-short pairs (c) one tall, one short bar (d) a straight line
28. 28.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with a cross (c) one tall, one short bar (d) a straight line
29. 29.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) voltmeter (c) cell (d) wire
30. 30.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
31. 31.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) cell (c) junction (d) diode
33. 33.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with a cross (c) two or more cell symbols (d) a straight line
34. 34.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) cell (c) switch (d) capacitor
35. 35.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a long and a short line (c) a circle with an X in it (d) a small empty box
36. 36.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
37. 37.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
38. 38.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with M inside (c) two equal parallel lines (d) a circle with a cross
39. 39.Which drawing is the symbol for a diode? (a) a circle with M inside (b) two equal parallel lines (c) a circle with a cross (d) triangle against a bar
40. 40.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True

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