Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 678 · 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) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
2. 2.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) many long-short pairs (c) two equal parallel lines (d) a long and a short line
3. 3.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) ammeter (c) LED (d) resistor
4. 4.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) motor (c) ammeter (d) bulb
5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) battery (c) switch (d) diode
6. 6.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) capacitor (c) LED (d) cell
7. 7.Which drawing is the symbol for a battery? (a) a circle with M inside (b) one tall, one short bar (c) two or more cell symbols (d) a circle with an X in it
8. 8.Which drawing is the symbol for an LED? (a) triangle against a bar (b) many long-short pairs (c) one tall, one short bar (d) triangle, bar and arrows
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
10. 10.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
12. 12.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) junction (c) cell (d) capacitor
14. 14.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
15. 15.True or false: a straight line is the symbol for a wire. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) voltmeter (c) battery (d) cell
17. 17.Which drawing is the symbol for a bulb? (a) a small empty box (b) a long and a short line (c) a straight line (d) a circle with a cross
18. 18.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) switch (c) capacitor (d) ammeter
19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) capacitor (c) LED (d) cell
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) capacitor (c) voltmeter (d) switch
21. 21.True or false: a small empty box is the symbol for an LED. (a) False (b) True
22. 22.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) ammeter (c) switch (d) motor
24. 24.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
25. 25.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
26. 26.True or false: two or more cell symbols is the symbol for a motor. (a) False (b) True
27. 27.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a circle with an X in it (c) a circle with M inside (d) a plain rectangle
28. 28.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a dot where wires meet (c) a circle with V inside (d) a circle with M inside
29. 29.True or false: a dot where wires meet is the symbol for a wire. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) wire (c) voltmeter (d) junction
31. 31.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) capacitor (c) cell (d) wire
32. 32.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a line lifted at a gap (c) a straight line (d) a circle with an X in it
33. 33.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) battery (c) diode (d) capacitor
35. 35.True or false: two or more cell symbols is the symbol for an ammeter. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) motor (c) diode (d) LED
37. 37.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
38. 38.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with M inside (c) a plain rectangle (d) a circle with an X in it
39. 39.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) cell (c) wire (d) bulb

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