Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 786 · 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 small empty box? (a) resistor (b) diode (c) cell (d) bulb
2. 2.Which drawing is the symbol for a motor? (a) a circle with M inside (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with a cross
3. 3.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
4. 4.✏️ 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
5. 5.True or false: a circle with V inside is the symbol for an LED. (a) False (b) True
6. 6.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
8. 8.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a plain rectangle (c) a circle with an X in it (d) a long and a short line
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
10. 10.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
11. 11.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
12. 12.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) many long-short pairs (c) a circle with V inside (d) a plain rectangle
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) ammeter (c) motor (d) wire
14. 14.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) voltmeter (c) resistor (d) capacitor
15. 15.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with a cross (c) a circle with M inside (d) triangle, bar and arrows
16. 16.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) switch (c) battery (d) motor
18. 18.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a long and a short line (c) a small empty box (d) many long-short pairs
19. 19.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) a line lifted at a gap (c) a circle with A inside (d) one tall, one short bar
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) bulb (c) switch (d) wire
21. 21.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) many long-short pairs (c) a small empty box (d) a straight line
22. 22.Which drawing is the symbol for a capacitor? (a) a straight line (b) a line lifted at a gap (c) two equal parallel lines (d) a long and a short line
23. 23.True or false: a small empty box is the symbol for an LED. (a) True (b) False
24. 24.True or false: triangle, bar and arrows is the symbol for a resistor. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) LED (c) diode (d) capacitor
26. 26.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) motor (c) capacitor (d) switch
27. 27.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False
28. 28.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a straight line (c) two or more cell symbols (d) a small empty box
29. 29.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) many long-short pairs (c) one tall, one short bar (d) triangle against a bar
30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) capacitor (c) bulb (d) resistor
31. 31.Which drawing is the symbol for an LED? (a) a small empty box (b) a circle with A inside (c) a circle with an X in it (d) triangle, bar and arrows
32. 32.Which drawing is the symbol for a wire? (a) triangle against a bar (b) triangle, bar and arrows (c) a straight line (d) two or more cell symbols
33. 33.True or false: a straight line is the symbol for a wire. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) diode (c) voltmeter (d) cell
35. 35.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a long and a short line (c) a circle with an X in it (d) one tall, one short bar
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) resistor (c) bulb (d) cell
37. 37.True or false: a long and a short line is the symbol for a battery. (a) False (b) True
38. 38.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
39. 39.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a small empty box (c) triangle against a bar (d) a circle with A inside
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) ammeter (c) voltmeter (d) switch

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