Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 324 · 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.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
2. 2.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) ammeter (c) motor (d) LED
3. 3.True or false: a straight line is the symbol for a wire. (a) True (b) False
4. 4.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a small empty box (c) a long and a short line (d) a circle with V inside
5. 5.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) triangle against a bar (c) a dot where wires meet (d) two equal parallel lines
6. 6.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) capacitor (c) cell (d) switch
7. 7.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) cell (d) motor
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
9. 9.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
10. 10.True or false: two equal parallel lines is the symbol for a diode. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) resistor (c) ammeter (d) junction
12. 12.Which drawing is the symbol for a junction? (a) a circle with a cross (b) triangle against a bar (c) a long and a short line (d) a dot where wires meet
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) wire (c) battery (d) capacitor
15. 15.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) resistor (c) capacitor (d) junction
17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) junction (c) bulb (d) cell
18. 18.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) two equal parallel lines (c) many long-short pairs (d) triangle against a bar
19. 19.Which drawing is the symbol for a resistor? (a) a small empty box (b) triangle against a bar (c) a long and a short line (d) a circle with A inside
20. 20.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a straight line (c) two or more cell symbols (d) triangle against a bar
21. 21.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) switch (c) bulb (d) battery
23. 23.True or false: a circle with M inside is the symbol for a voltmeter. (a) True (b) False
24. 24.True or false: two or more cell symbols is the symbol for a capacitor. (a) False (b) True
25. 25.True or false: one tall, one short bar is the symbol for an LED. (a) True (b) False
26. 26.Which drawing is the symbol for a switch? (a) a straight line (b) one tall, one short bar (c) a line lifted at a gap (d) triangle against a bar
27. 27.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) cell (c) resistor (d) ammeter
29. 29.Which drawing is the symbol for a battery? (a) a circle with M inside (b) many long-short pairs (c) a long and a short line (d) triangle, bar and arrows
30. 30.Which drawing is the symbol for a diode? (a) a circle with M inside (b) a straight line (c) a long and a short line (d) triangle against a bar
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) motor (c) bulb (d) resistor
32. 32.Which drawing is the symbol for a cell? (a) a straight line (b) a circle with an X in it (c) a long and a short line (d) a circle with M inside
33. 33.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
34. 34.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
35. 35.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a circle with A inside (c) two or more cell symbols (d) a circle with M inside
36. 36.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle, bar and arrows (c) a long and a short line (d) a circle with an X in it
37. 37.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
38. 38.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) switch (c) bulb (d) resistor
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) switch (c) voltmeter (d) bulb

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