Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 761 · 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 diode? (a) two equal parallel lines (b) a circle with M inside (c) triangle against a bar (d) a plain rectangle
2. 2.Which drawing is the symbol for an LED? (a) a plain rectangle (b) two or more cell symbols (c) triangle against a bar (d) triangle, bar and arrows
3. 3.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
4. 4.✏️ 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
5. 5.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) switch (c) resistor (d) voltmeter
6. 6.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) battery (c) cell (d) voltmeter
7. 7.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) LED (c) battery (d) ammeter
8. 8.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
9. 9.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a circle with V inside (c) a circle with A inside (d) a straight line
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) battery (c) diode (d) LED
12. 12.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) ammeter (c) voltmeter (d) bulb
14. 14.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) motor (c) LED (d) voltmeter
15. 15.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a circle with A inside (c) one tall, one short bar (d) a circle with M inside
16. 16.Which drawing is the symbol for a cell? (a) a straight line (b) a plain rectangle (c) a circle with V inside (d) a long and a short line
17. 17.Which drawing is the symbol for a capacitor? (a) a straight line (b) a long and a short line (c) two equal parallel lines (d) triangle, bar and arrows
18. 18.True or false: a straight line is the symbol for a wire. (a) False (b) True
19. 19.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) two equal parallel lines (c) a small empty box (d) a circle with V inside
20. 20.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) many long-short pairs (c) a line lifted at a gap (d) a circle with V inside
21. 21.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) resistor (c) motor (d) wire
22. 22.True or false: triangle against a bar is the symbol for an ammeter. (a) False (b) True
23. 23.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
24. 24.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) cell (c) bulb (d) wire
25. 25.True or false: a dot where wires meet is the symbol for a resistor. (a) True (b) False
26. 26.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a line lifted at a gap (c) a long and a short line (d) one tall, one short bar
27. 27.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
28. 28.True or false: a circle with M inside is the symbol for a capacitor. (a) False (b) True
29. 29.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with M inside
30. 30.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a circle with V inside (c) a line lifted at a gap (d) a small empty box
31. 31.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) battery (c) resistor (d) capacitor
33. 33.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) resistor (c) bulb (d) junction
35. 35.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) capacitor (c) cell (d) battery
37. 37.True or false: one tall, one short bar is the symbol for a capacitor. (a) True (b) False
38. 38.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with a cross (c) two equal parallel lines (d) a straight line
39. 39.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) battery (c) resistor (d) junction
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) diode (c) ammeter (d) bulb

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