Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 703 · 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) to hide the circuit (c) quick and clear for all (d) to make it colourful
2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) voltmeter (c) wire (d) battery
3. 3.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
4. 4.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
5. 5.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a circle with A inside (c) a circle with an X in it (d) a line lifted at a gap
6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) battery (c) capacitor (d) cell
7. 7.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) wire (c) capacitor (d) voltmeter
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
9. 9.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True
10. 10.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
11. 11.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a small empty box (c) two equal parallel lines (d) a line lifted at a gap
12. 12.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a straight line (c) many long-short pairs (d) a plain rectangle
13. 13.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
14. 14.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) two equal parallel lines (c) two or more cell symbols (d) a small empty box
15. 15.True or false: a circle with M inside is the symbol for a resistor. (a) False (b) True
16. 16.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
18. 18.True or false: a long and a short line is the symbol for a diode. (a) False (b) True
19. 19.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
20. 20.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) diode (c) switch (d) ammeter
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) voltmeter (c) diode (d) capacitor
23. 23.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) battery (c) voltmeter (d) ammeter
25. 25.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) two or more cell symbols (c) a straight line (d) a circle with V inside
26. 26.True or false: a circle with V inside is the symbol for a resistor. (a) False (b) True
27. 27.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
28. 28.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) two or more cell symbols (c) a small empty box (d) two equal parallel lines
29. 29.True or false: a circle with an X in it is the symbol for a resistor. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) ammeter (c) battery (d) diode
31. 31.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) bulb (c) junction (d) resistor
32. 32.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) LED (c) switch (d) cell
33. 33.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) many long-short pairs (c) a plain rectangle (d) two equal parallel lines
34. 34.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a circle with M inside (c) a dot where wires meet (d) a circle with an X in it
35. 35.True or false: a circle with A inside is the symbol for an LED. (a) False (b) True
36. 36.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) bulb (c) junction (d) LED
38. 38.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) battery (c) cell (d) bulb
39. 39.Which drawing is the symbol for a wire? (a) a straight line (b) a plain rectangle (c) a circle with A inside (d) a circle with V inside
40. 40.Which drawing is the symbol for a cell? (a) a long and a short line (b) a straight line (c) two or more cell symbols (d) many long-short pairs

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