Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 343 · 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.✏️ 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
2. 2.Which drawing is the symbol for a wire? (a) a circle with A inside (b) triangle against a bar (c) a circle with an X in it (d) a straight line
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) battery (c) resistor (d) capacitor
4. 4.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) junction (c) LED (d) capacitor
5. 5.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a long and a short line (c) many long-short pairs (d) two equal parallel lines
6. 6.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) resistor (c) LED (d) diode
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) ammeter (c) cell (d) resistor
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
10. 10.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with an X in it (c) a circle with A inside (d) a circle with V inside
11. 11.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) two or more cell symbols (c) a plain rectangle (d) a line lifted at a gap
12. 12.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) wire (c) diode (d) LED
13. 13.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) ammeter (c) battery (d) switch
14. 14.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) diode (c) resistor (d) wire
15. 15.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
16. 16.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a circle with A inside (c) triangle against a bar (d) a circle with M inside
17. 17.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
18. 18.Which drawing is the symbol for an LED? (a) a circle with a cross (b) triangle, bar and arrows (c) triangle against a bar (d) a long and a short line
19. 19.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
20. 20.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
21. 21.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with a cross (c) two or more cell symbols (d) one tall, one short bar
22. 22.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a long and a short line (c) one tall, one short bar (d) a circle with a cross
23. 23.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
24. 24.True or false: triangle, bar and arrows is the symbol for a voltmeter. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) switch (c) cell (d) bulb
26. 26.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
27. 27.Which drawing is the symbol for a battery? (a) a small empty box (b) one tall, one short bar (c) many long-short pairs (d) two equal parallel lines
28. 28.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) one tall, one short bar (c) a circle with A inside (d) a long and a short line
29. 29.Which drawing is the symbol for a junction? (a) a straight line (b) two equal parallel lines (c) many long-short pairs (d) a dot where wires meet
30. 30.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
31. 31.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) diode (c) resistor (d) bulb
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) cell (c) junction (d) motor
34. 34.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
35. 35.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
36. 36.True or false: a circle with an X in it is the symbol for a cell. (a) True (b) False
37. 37.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) triangle against a bar (c) a circle with A inside (d) a long and a short line
38. 38.True or false: a circle with an X in it is the symbol for a switch. (a) True (b) False
39. 39.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) junction (c) cell (d) ammeter

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