Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 855 · 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 circle with A inside? (a) voltmeter (b) switch (c) diode (d) ammeter
2. 2.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
3. 3.True or false: a circle with an X in it 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) ammeter (b) junction (c) switch (d) wire
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
7. 7.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) two or more cell symbols (c) a small empty box (d) a straight line
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) LED (c) motor (d) capacitor
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) diode (c) capacitor (d) bulb
10. 10.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle against a bar (c) a circle with V inside (d) a straight line
11. 11.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) resistor (c) capacitor (d) bulb
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) diode (c) wire (d) cell
13. 13.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) triangle, bar and arrows (c) one tall, one short bar (d) a line lifted at a gap
14. 14.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
15. 15.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
16. 16.True or false: a straight line is the symbol for a battery. (a) True (b) False
17. 17.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) many long-short pairs (c) a circle with a cross (d) a long and a short line
18. 18.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) cell (c) switch (d) battery
20. 20.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) cell (c) LED (d) battery
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) diode (c) junction (d) motor
23. 23.Which drawing is the symbol for a bulb? (a) a straight line (b) a dot where wires meet (c) a long and a short line (d) a circle with a cross
24. 24.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with an X in it (c) one tall, one short bar (d) triangle against a bar
25. 25.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) triangle, bar and arrows (c) a circle with M inside (d) a circle with a cross
26. 26.True or false: a small empty box is the symbol for a motor. (a) True (b) False
27. 27.True or false: a straight line is the symbol for a wire. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) cell (c) resistor (d) LED
29. 29.Which drawing is the symbol for a motor? (a) a straight line (b) a circle with V inside (c) a circle with M inside (d) a circle with an X in it
30. 30.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with M inside (c) a plain rectangle (d) a small empty box
31. 31.Which drawing is the symbol for a voltmeter? (a) a straight line (b) many long-short pairs (c) a circle with V inside (d) a line lifted at a gap
32. 32.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
33. 33.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
34. 34.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False
35. 35.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) voltmeter (c) battery (d) switch
37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) motor (c) ammeter (d) bulb
38. 38.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
39. 39.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
40. 40.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False

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