Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 178 · 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, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
2. 2.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) a circle with A inside (c) a dot where wires meet (d) a circle with V inside
3. 3.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
4. 4.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a long and a short line (c) a circle with a cross (d) a small empty box
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) switch (c) LED (d) voltmeter
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) bulb (c) battery (d) resistor
8. 8.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a small empty box (c) a circle with V inside (d) a circle with an X in it
9. 9.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) switch (c) junction (d) bulb
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) bulb (c) switch (d) motor
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) cell (c) switch (d) bulb
13. 13.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with a cross (c) a long and a short line (d) many long-short pairs
14. 14.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) motor (c) capacitor (d) wire
16. 16.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) ammeter (c) bulb (d) junction
18. 18.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) motor (c) capacitor (d) resistor
19. 19.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) capacitor (c) resistor (d) bulb
20. 20.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
21. 21.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
22. 22.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
23. 23.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) triangle against a bar (c) a plain rectangle (d) a long and a short line
24. 24.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) two or more cell symbols (c) triangle, bar and arrows (d) a straight line
25. 25.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) resistor (c) wire (d) LED
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) ammeter (c) resistor (d) junction
27. 27.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
28. 28.True or false: a circle with a cross is the symbol for a capacitor. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) wire (c) capacitor (d) LED
30. 30.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a circle with V inside (c) a long and a short line (d) a plain rectangle
31. 31.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) battery (c) junction (d) bulb
33. 33.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) resistor (c) battery (d) diode
34. 34.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
35. 35.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) ammeter (c) battery (d) bulb
37. 37.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) cell (c) junction (d) diode
38. 38.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) many long-short pairs (c) a straight line (d) a line lifted at a gap
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
40. 40.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True

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