Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 832 · 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 cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
2. 2.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
3. 3.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a straight line (c) two equal parallel lines (d) a line lifted at a gap
4. 4.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) ammeter (c) wire (d) diode
6. 6.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
7. 7.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
8. 8.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a circle with a cross (c) two equal parallel lines (d) a small empty box
9. 9.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) triangle against a bar (c) a circle with a cross (d) a circle with M inside
10. 10.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) two equal parallel lines (c) triangle against a bar (d) a plain rectangle
11. 11.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
12. 12.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) bulb (c) junction (d) voltmeter
14. 14.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a long and a short line (c) a circle with a cross (d) triangle against a bar
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
16. 16.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) capacitor (c) bulb (d) switch
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) junction (c) ammeter (d) battery
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) bulb (c) voltmeter (d) motor
19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) capacitor (c) diode (d) junction
20. 20.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a circle with V inside (c) a plain rectangle (d) triangle against a bar
21. 21.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
22. 22.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a circle with V inside (c) a circle with an X in it (d) many long-short pairs
23. 23.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a line lifted at a gap (c) a circle with A inside (d) triangle, bar and arrows
24. 24.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a straight line (c) two or more cell symbols (d) a circle with A inside
25. 25.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) switch (c) resistor (d) ammeter
26. 26.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) capacitor (c) resistor (d) wire
27. 27.Which drawing is the symbol for a diode? (a) a circle with a cross (b) a small empty box (c) a circle with A inside (d) triangle against a bar
28. 28.Which drawing is the symbol for a cell? (a) many long-short pairs (b) two equal parallel lines (c) a dot where wires meet (d) a long and a short line
29. 29.Which drawing is the symbol for a battery? (a) a long and a short line (b) a circle with a cross (c) a small empty box (d) two or more cell symbols
30. 30.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
31. 31.Which drawing is the symbol for a junction? (a) a circle with M inside (b) a circle with A inside (c) a straight line (d) a dot where wires meet
32. 32.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) two or more cell symbols (c) a circle with A inside (d) two equal parallel lines
33. 33.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) capacitor (c) junction (d) wire
35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) ammeter (c) cell (d) switch
36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) switch (c) cell (d) diode
37. 37.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) capacitor (c) cell (d) LED
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) bulb (c) motor (d) capacitor
39. 39.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
40. 40.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True

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