Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 241 · 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.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a line lifted at a gap (c) a long and a short line (d) a circle with V inside
2. 2.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) switch (c) wire (d) battery
3. 3.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) wire (c) diode (d) switch
5. 5.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
6. 6.Which drawing is the symbol for a battery? (a) a long and a short line (b) a plain rectangle (c) a circle with M inside (d) two or more cell symbols
7. 7.True or false: a small empty box is the symbol for a motor. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) battery (c) bulb (d) LED
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) switch (c) diode (d) cell
10. 10.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) triangle, bar and arrows (c) two equal parallel lines (d) a circle with A inside
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
12. 12.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) a long and a short line (c) triangle against a bar (d) a circle with V inside
13. 13.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) a circle with a cross (c) a circle with an X in it (d) a circle with M inside
14. 14.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
15. 15.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) one tall, one short bar (c) a circle with V inside (d) a line lifted at a gap
16. 16.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with a cross (c) a circle with A inside (d) two equal parallel lines
17. 17.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) voltmeter (c) bulb (d) capacitor
19. 19.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) wire (c) resistor (d) battery
21. 21.Which drawing is the symbol for a capacitor? (a) a line lifted at a gap (b) triangle, bar and arrows (c) two equal parallel lines (d) a long and a short line
22. 22.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
23. 23.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
24. 24.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
25. 25.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) triangle, bar and arrows (c) many long-short pairs (d) a straight line
26. 26.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
27. 27.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) battery (c) diode (d) switch
29. 29.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) resistor (c) ammeter (d) cell
30. 30.True or false: one tall, one short bar is the symbol for a wire. (a) True (b) False
31. 31.Which drawing is the symbol for a cell? (a) a straight line (b) a plain rectangle (c) one tall, one short bar (d) two or more cell symbols
32. 32.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) battery (c) ammeter (d) resistor
34. 34.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a plain rectangle (c) a straight line (d) a long and a short line
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) ammeter (c) diode (d) wire
36. 36.Which drawing is the symbol for a battery? (a) a circle with V inside (b) a small empty box (c) many long-short pairs (d) a dot where wires meet
37. 37.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
38. 38.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
39. 39.True or false: triangle against a bar is the symbol for an ammeter. (a) True (b) False
40. 40.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True

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