Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 293 · 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: triangle against a bar is the symbol for a diode. (a) True (b) False
2. 2.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) junction (c) cell (d) battery
3. 3.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) diode (c) bulb (d) ammeter
4. 4.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) switch (c) bulb (d) diode
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
7. 7.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
8. 8.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a circle with A inside (c) a circle with a cross (d) a plain rectangle
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) voltmeter (c) cell (d) battery
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) resistor (d) ammeter
11. 11.Which drawing is the symbol for a diode? (a) a long and a short line (b) a dot where wires meet (c) a circle with A inside (d) triangle against a bar
12. 12.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) a small empty box (c) two equal parallel lines (d) a circle with a cross
13. 13.True or false: a circle with M inside is the symbol for a wire. (a) True (b) False
14. 14.True or false: triangle against a bar is the symbol for a voltmeter. (a) False (b) True
15. 15.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) one tall, one short bar (c) a circle with an X in it (d) two or more cell symbols
16. 16.True or false: a circle with an X in it is the symbol for a switch. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) cell (c) diode (d) wire
18. 18.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) two equal parallel lines (c) triangle, bar and arrows (d) a dot where wires meet
19. 19.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
20. 20.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a circle with V inside (c) a straight line (d) a long and a short line
21. 21.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) switch (c) ammeter (d) bulb
22. 22.Which drawing is the symbol for a wire? (a) a straight line (b) a dot where wires meet (c) many long-short pairs (d) triangle against a bar
23. 23.Which drawing is the symbol for a motor? (a) a long and a short line (b) triangle against a bar (c) a line lifted at a gap (d) a circle with M inside
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) voltmeter (c) battery (d) ammeter
25. 25.✏️ 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
26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) capacitor (c) motor (d) battery
27. 27.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
28. 28.True or false: a circle with M inside is the symbol for a junction. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) switch (c) motor (d) cell
30. 30.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) many long-short pairs (c) triangle against a bar (d) a circle with an X in it
31. 31.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) battery (c) switch (d) diode
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) bulb (c) ammeter (d) resistor
33. 33.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
34. 34.Which drawing is the symbol for a resistor? (a) a straight line (b) a circle with V inside (c) a line lifted at a gap (d) a small empty box
35. 35.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) ammeter (d) capacitor
36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) ammeter (c) switch (d) cell
37. 37.True or false: two equal parallel lines is the symbol for a diode. (a) False (b) True
38. 38.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) wire (c) ammeter (d) resistor

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