Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 518 · 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 two equal parallel lines? (a) bulb (b) cell (c) capacitor (d) switch
2. 2.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) voltmeter (c) wire (d) diode
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) voltmeter (c) battery (d) switch
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
7. 7.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with M inside (c) a dot where wires meet (d) a line lifted at a gap
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) battery (c) switch (d) ammeter
9. 9.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
10. 10.Which drawing is the symbol for a battery? (a) a circle with M inside (b) a small empty box (c) two or more cell symbols (d) a dot where wires meet
11. 11.True or false: a line lifted at a gap is the symbol for a junction. (a) False (b) True
12. 12.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) a circle with M inside (c) a circle with V inside (d) many long-short pairs
13. 13.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) one tall, one short bar (c) a plain rectangle (d) two or more cell symbols
14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) diode (c) bulb (d) battery
15. 15.True or false: triangle against a bar is the symbol for an LED. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) motor (c) battery (d) LED
17. 17.Which drawing is the symbol for a wire? (a) a plain rectangle (b) a circle with M inside (c) a straight line (d) two equal parallel lines
18. 18.True or false: a straight line is the symbol for a resistor. (a) True (b) False
19. 19.Which drawing is the symbol for a junction? (a) a circle with A inside (b) two equal parallel lines (c) a dot where wires meet (d) two or more cell symbols
20. 20.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) junction (c) resistor (d) motor
21. 21.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) wire (c) switch (d) LED
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) cell (c) capacitor (d) motor
23. 23.Which drawing is the symbol for a capacitor? (a) a straight line (b) a small empty box (c) a circle with M inside (d) two equal parallel lines
24. 24.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with A inside (c) a circle with M inside (d) a circle with a cross
25. 25.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
26. 26.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) battery (c) LED (d) wire
28. 28.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) resistor (c) switch (d) battery
29. 29.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
30. 30.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
31. 31.Which drawing is the symbol for a cell? (a) a circle with a cross (b) one tall, one short bar (c) triangle against a bar (d) a line lifted at a gap
32. 32.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) many long-short pairs (c) one tall, one short bar (d) a circle with V inside
33. 33.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
34. 34.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
35. 35.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
36. 36.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) ammeter (c) battery (d) wire
38. 38.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
39. 39.True or false: two or more cell symbols 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) cell (b) motor (c) battery (d) bulb

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