Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 196 · 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, which part is drawn as triangle, bar and arrows? (a) ammeter (b) LED (c) resistor (d) battery
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) bulb (c) voltmeter (d) LED
3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) ammeter (c) wire (d) motor
4. 4.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) cell (c) resistor (d) diode
5. 5.True or false: a plain rectangle is the symbol for a junction. (a) False (b) True
6. 6.True or false: two equal parallel lines is the symbol for a wire. (a) True (b) False
7. 7.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) cell (c) wire (d) LED
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
11. 11.True or false: a straight line is the symbol for a battery. (a) False (b) True
12. 12.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
13. 13.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
14. 14.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) a plain rectangle (c) a straight line (d) a circle with A inside
15. 15.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
16. 16.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
17. 17.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with an X in it (c) a circle with a cross (d) a long and a short line
18. 18.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) switch (c) cell (d) battery
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) motor (c) junction (d) bulb
20. 20.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a line lifted at a gap (c) a plain rectangle (d) a straight line
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) bulb (c) diode (d) junction
22. 22.Which drawing is the symbol for an LED? (a) a circle with A inside (b) two equal parallel lines (c) triangle against a bar (d) triangle, bar and arrows
23. 23.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
24. 24.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) many long-short pairs (c) triangle, bar and arrows (d) triangle against a bar
25. 25.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
26. 26.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) ammeter (c) diode (d) bulb
28. 28.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
29. 29.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
30. 30.True or false: a straight line is the symbol for a motor. (a) False (b) True
31. 31.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a circle with V inside (c) many long-short pairs (d) one tall, one short bar
32. 32.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a long and a short line (c) a plain rectangle (d) many long-short pairs
33. 33.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) bulb (c) capacitor (d) diode
34. 34.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
35. 35.Which drawing is the symbol for a junction? (a) a plain rectangle (b) a dot where wires meet (c) a circle with a cross (d) a circle with an X in it
36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) switch (c) LED (d) battery
37. 37.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a circle with a cross (c) two equal parallel lines (d) a small empty box
38. 38.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
39. 39.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a dot where wires meet (c) a circle with M inside (d) a circle with V inside
40. 40.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True

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