Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 535 · 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) switch (b) resistor (c) junction (d) motor
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
3. 3.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
4. 4.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a small empty box (c) a circle with a cross (d) a circle with an X in it
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
6. 6.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a straight line (c) a long and a short line (d) a line lifted at a gap
7. 7.Which drawing is the symbol for a cell? (a) a straight line (b) one tall, one short bar (c) a circle with V inside (d) two or more cell symbols
8. 8.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
9. 9.True or false: triangle against a bar is the symbol for a junction. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) capacitor (c) resistor (d) diode
11. 11.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
12. 12.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) bulb (c) battery (d) junction
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) resistor (d) ammeter
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) capacitor (c) battery (d) bulb
16. 16.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) two equal parallel lines (c) a circle with an X in it (d) many long-short pairs
17. 17.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
18. 18.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
19. 19.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) battery (c) voltmeter (d) diode
21. 21.True or false: two or more cell symbols is the symbol for a switch. (a) True (b) False
22. 22.True or false: a straight line is the symbol for a wire. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) motor (c) ammeter (d) cell
24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) capacitor (c) battery (d) wire
25. 25.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) many long-short pairs (c) a small empty box (d) triangle, bar and arrows
26. 26.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) switch (c) capacitor (d) wire
27. 27.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
28. 28.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
29. 29.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a dot where wires meet (c) a circle with V inside (d) a line lifted at a gap
30. 30.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a plain rectangle (c) a circle with a cross (d) a small empty box
31. 31.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) LED (c) diode (d) ammeter
32. 32.True or false: a small empty box is the symbol for a wire. (a) True (b) False
33. 33.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) two equal parallel lines (c) a circle with an X in it (d) a circle with M inside
34. 34.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) capacitor (c) junction (d) voltmeter
36. 36.Which drawing is the symbol for a junction? (a) a circle with M inside (b) a line lifted at a gap (c) a circle with V inside (d) a dot where wires meet
37. 37.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
38. 38.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a line lifted at a gap (c) a circle with M inside (d) two or more cell symbols
39. 39.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) switch (c) junction (d) bulb
40. 40.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True

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