Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 427 · 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 cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
2. 2.✏️ 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
3. 3.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a circle with V inside (c) triangle against a bar (d) one tall, one short bar
4. 4.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
5. 5.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a line lifted at a gap (c) a straight line (d) a small empty box
6. 6.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) LED (c) battery (d) bulb
7. 7.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) resistor (c) bulb (d) capacitor
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
9. 9.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
10. 10.Which drawing is the symbol for a capacitor? (a) a line lifted at a gap (b) two or more cell symbols (c) a plain rectangle (d) two equal parallel lines
11. 11.True or false: a circle with M inside is the symbol for a capacitor. (a) True (b) False
12. 12.Which drawing is the symbol for a junction? (a) a circle with M inside (b) a dot where wires meet (c) a circle with V inside (d) triangle against a bar
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) diode (c) ammeter (d) switch
14. 14.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) many long-short pairs (c) a circle with M inside (d) a dot where wires meet
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) diode (c) resistor (d) battery
16. 16.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with M inside
17. 17.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) switch (c) bulb (d) battery
18. 18.Which drawing is the symbol for a diode? (a) many long-short pairs (b) triangle against a bar (c) a long and a short line (d) one tall, one short bar
19. 19.True or false: a line lifted at a gap is the symbol for a junction. (a) True (b) False
20. 20.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a small empty box (c) many long-short pairs (d) one tall, one short bar
21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) switch (c) ammeter (d) LED
22. 22.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) cell (c) LED (d) battery
23. 23.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False
24. 24.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a circle with an X in it (c) a long and a short line (d) a small empty box
25. 25.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) voltmeter (c) capacitor (d) wire
27. 27.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
28. 28.Which drawing is the symbol for a motor? (a) two equal parallel lines (b) triangle against a bar (c) a line lifted at a gap (d) a circle with M inside
29. 29.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a small empty box (c) a circle with M inside (d) a long and a short line
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) motor (c) LED (d) bulb
31. 31.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) capacitor (c) motor (d) switch
32. 32.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) switch (c) capacitor (d) ammeter
34. 34.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) resistor (c) wire (d) switch
35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) resistor (c) LED (d) switch
36. 36.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
37. 37.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a circle with an X in it (c) a straight line (d) a circle with V inside
38. 38.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
39. 39.Which drawing is the symbol for a switch? (a) a long and a short line (b) a plain rectangle (c) a line lifted at a gap (d) a circle with a cross
40. 40.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False

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