Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 571 · 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 a motor? (a) a circle with A inside (b) a circle with M inside (c) one tall, one short bar (d) triangle against a bar
2. 2.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a dot where wires meet (c) a long and a short line (d) many long-short pairs
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
4. 4.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) diode (c) voltmeter (d) wire
5. 5.Which drawing is the symbol for a diode? (a) a long and a short line (b) triangle against a bar (c) a circle with V inside (d) two or more cell symbols
6. 6.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
8. 8.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a long and a short line (c) many long-short pairs (d) a line lifted at a gap
9. 9.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a long and a short line (c) one tall, one short bar (d) a small empty box
10. 10.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
11. 11.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
12. 12.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
13. 13.True or false: a plain rectangle is the symbol for a battery. (a) True (b) False
14. 14.Which drawing is the symbol for a junction? (a) a circle with V inside (b) two or more cell symbols (c) many long-short pairs (d) a dot where wires meet
15. 15.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) junction (c) resistor (d) LED
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) switch (c) bulb (d) voltmeter
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) cell (d) motor
18. 18.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) cell (c) diode (d) battery
19. 19.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
20. 20.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
21. 21.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
22. 22.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
23. 23.True or false: a straight line is the symbol for a wire. (a) True (b) False
24. 24.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) two or more cell symbols (c) a plain rectangle (d) a circle with a cross
25. 25.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a plain rectangle (c) many long-short pairs (d) a small empty box
26. 26.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) LED (c) capacitor (d) resistor
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) switch (c) bulb (d) cell
29. 29.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) resistor (c) switch (d) motor
30. 30.True or false: a long and a short line is the symbol for a voltmeter. (a) True (b) False
31. 31.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a circle with an X in it (c) a circle with V inside (d) a straight line
32. 32.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) wire (c) bulb (d) capacitor
33. 33.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) capacitor (d) resistor
34. 34.Which drawing is the symbol for a battery? (a) a long and a short line (b) two or more cell symbols (c) a circle with M inside (d) two equal parallel lines
35. 35.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
36. 36.True or false: a circle with V inside is the symbol for a resistor. (a) False (b) True
37. 37.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
38. 38.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a long and a short line (c) a circle with M inside (d) a circle with V inside
39. 39.True or false: a circle with M inside is the symbol for a wire. (a) True (b) False
40. 40.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False

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