Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 611 · 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.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a small empty box (c) triangle against a bar (d) a circle with A inside
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
3. 3.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a circle with V inside (c) a circle with A inside (d) a small empty box
4. 4.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) many long-short pairs (c) a line lifted at a gap (d) a plain rectangle
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) resistor (c) battery (d) bulb
6. 6.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) battery (c) capacitor (d) motor
8. 8.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
9. 9.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a circle with an X in it (c) triangle against a bar (d) a line lifted at a gap
10. 10.True or false: two or more cell symbols is the symbol for a wire. (a) False (b) True
11. 11.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) triangle, bar and arrows (c) a dot where wires meet (d) two or more cell symbols
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) battery (c) resistor (d) switch
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) motor (c) battery (d) LED
15. 15.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) resistor (c) switch (d) capacitor
17. 17.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) bulb (d) switch
18. 18.True or false: a straight line is the symbol for a resistor. (a) False (b) True
19. 19.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
20. 20.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
21. 21.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a straight line (c) triangle against a bar (d) a circle with M inside
22. 22.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) wire (c) resistor (d) voltmeter
23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) battery (c) LED (d) motor
24. 24.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with A inside (c) a plain rectangle (d) a circle with M inside
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) junction (c) resistor (d) capacitor
26. 26.True or false: a small empty box is the symbol for a wire. (a) True (b) False
27. 27.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
28. 28.Which drawing is the symbol for a wire? (a) a circle with V inside (b) one tall, one short bar (c) a long and a short line (d) a straight line
29. 29.Which drawing is the symbol for an LED? (a) a circle with A inside (b) a long and a short line (c) triangle, bar and arrows (d) a plain rectangle
30. 30.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
31. 31.True or false: a circle with a cross is the symbol for a voltmeter. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) bulb (c) ammeter (d) diode
33. 33.Which drawing is the symbol for a diode? (a) a circle with M inside (b) a small empty box (c) triangle against a bar (d) one tall, one short bar
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) diode (c) wire (d) voltmeter
35. 35.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
36. 36.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) two equal parallel lines (c) a plain rectangle (d) a straight line
37. 37.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) ammeter (c) LED (d) diode
38. 38.True or false: a straight line is the symbol for a wire. (a) False (b) True
39. 39.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) voltmeter (c) LED (d) cell

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