Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 897 · 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.True or false: many long-short pairs is the symbol for an LED. (a) True (b) False
2. 2.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) resistor (c) LED (d) switch
3. 3.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a dot where wires meet (c) a long and a short line (d) many long-short pairs
4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) cell (c) resistor (d) voltmeter
5. 5.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) many long-short pairs (c) two or more cell symbols (d) a circle with V inside
6. 6.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) resistor (c) voltmeter (d) capacitor
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) motor (c) cell (d) battery
9. 9.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
11. 11.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
12. 12.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
13. 13.Which drawing is the symbol for a motor? (a) a circle with M inside (b) one tall, one short bar (c) a long and a short line (d) a circle with a cross
14. 14.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) bulb (c) resistor (d) diode
15. 15.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with V inside (c) a plain rectangle (d) a long and a short line
16. 16.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a line lifted at a gap (c) two equal parallel lines (d) a straight line
17. 17.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
18. 18.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
19. 19.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) ammeter (c) battery (d) bulb
21. 21.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) a small empty box (c) a plain rectangle (d) a circle with A inside
22. 22.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a straight line (c) a long and a short line (d) triangle, bar and arrows
23. 23.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) switch (c) battery (d) resistor
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) voltmeter (c) resistor (d) bulb
26. 26.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) battery (c) junction (d) capacitor
28. 28.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) one tall, one short bar (c) a small empty box (d) a circle with a cross
29. 29.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a plain rectangle (d) two or more cell symbols
30. 30.Which drawing is the symbol for a junction? (a) a small empty box (b) a dot where wires meet (c) a circle with an X in it (d) many long-short pairs
31. 31.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) many long-short pairs (c) a small empty box (d) triangle, bar and arrows
32. 32.Which drawing is the symbol for a diode? (a) a long and a short line (b) a small empty box (c) a circle with V inside (d) triangle against a bar
33. 33.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) resistor (c) ammeter (d) voltmeter
35. 35.True or false: two or more cell symbols is the symbol for a capacitor. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) ammeter (c) battery (d) wire
37. 37.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) True (b) False
38. 38.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
39. 39.True or false: a plain rectangle 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 cell. (a) True (b) False

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