Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 584 · 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, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) voltmeter (c) bulb (d) diode
3. 3.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
4. 4.True or false: a straight line is the symbol for a battery. (a) False (b) True
5. 5.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with M inside (c) triangle, bar and arrows (d) two equal parallel lines
6. 6.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) bulb (c) LED (d) switch
7. 7.Which drawing is the symbol for a bulb? (a) a straight line (b) triangle against a 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) one tall, one short bar (b) two equal parallel lines (c) a line lifted at a gap (d) triangle, bar and arrows
9. 9.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) battery (c) junction (d) capacitor
11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) switch (c) battery (d) diode
12. 12.Which drawing is the symbol for a diode? (a) many long-short pairs (b) triangle against a bar (c) a dot where wires meet (d) a straight line
13. 13.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) one tall, one short bar (c) a circle with A inside (d) a small empty box
14. 14.True or false: a plain rectangle is the symbol for a wire. (a) True (b) False
15. 15.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with an X in it (c) a line lifted at a gap (d) a straight line
16. 16.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) resistor (c) junction (d) capacitor
18. 18.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
19. 19.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) battery (c) capacitor (d) switch
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) switch (c) bulb (d) resistor
22. 22.True or false: triangle against a bar is the symbol for a resistor. (a) False (b) True
23. 23.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
24. 24.Which drawing is the symbol for a junction? (a) a circle with V inside (b) many long-short pairs (c) two equal parallel lines (d) a dot where wires meet
25. 25.True or false: many long-short pairs is the symbol for a diode. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) capacitor (c) voltmeter (d) battery
27. 27.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) capacitor (c) battery (d) bulb
28. 28.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
29. 29.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a circle with V inside (c) a long and a short line (d) a circle with a cross
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) bulb (c) capacitor (d) LED
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) bulb (c) junction (d) cell
32. 32.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) a straight line (c) two or more cell symbols (d) a circle with V inside
33. 33.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
34. 34.True or false: a small empty box is the symbol for a cell. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) LED (c) switch (d) cell
36. 36.True or false: a circle with an X in it is the symbol for a cell. (a) False (b) True
37. 37.True or false: a straight line is the symbol for a wire. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) cell (c) capacitor (d) battery
39. 39.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) capacitor (c) motor (d) cell

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