Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 209 · 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 against a bar? (a) bulb (b) battery (c) ammeter (d) diode
2. 2.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a small empty box (c) a circle with a cross (d) a long and a short line
3. 3.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
4. 4.✏️ 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
5. 5.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a circle with a cross (c) a plain rectangle (d) a straight line
6. 6.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with an X in it (c) a circle with M inside (d) two equal parallel lines
7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) LED (c) cell (d) ammeter
8. 8.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
9. 9.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) one tall, one short bar (c) triangle against a bar (d) a long and a short line
10. 10.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
11. 11.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) one tall, one short bar (c) a circle with an X in it (d) a line lifted at a gap
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) cell (c) voltmeter (d) junction
13. 13.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
15. 15.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
16. 16.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a long and a short line (c) many long-short pairs (d) a circle with a cross
17. 17.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a circle with a cross (c) many long-short pairs (d) triangle, bar and arrows
18. 18.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
19. 19.True or false: two or more cell symbols is the symbol for an LED. (a) False (b) True
20. 20.True or false: two or more cell symbols is the symbol for a capacitor. (a) False (b) True
21. 21.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
22. 22.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a circle with A inside (c) a small empty box (d) a long and a short line
23. 23.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
24. 24.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
25. 25.True or false: a straight line is the symbol for a wire. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) diode (c) bulb (d) resistor
27. 27.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) cell (c) wire (d) resistor
28. 28.Which drawing is the symbol for a switch? (a) a small empty box (b) a line lifted at a gap (c) triangle against a bar (d) a long and a short line
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) bulb (c) resistor (d) motor
30. 30.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) wire (d) diode
31. 31.True or false: a long and a short line is the symbol for a diode. (a) True (b) False
32. 32.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
33. 33.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
34. 34.True or false: a small empty box is the symbol for a cell. (a) True (b) False
35. 35.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
36. 36.Which drawing is the symbol for an LED? (a) a long and a short line (b) triangle, bar and arrows (c) two or more cell symbols (d) a dot where wires meet
37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) capacitor (c) resistor (d) voltmeter
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) cell (c) bulb (d) voltmeter
39. 39.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with V inside (c) two equal parallel lines (d) one tall, one short bar
40. 40.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False

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