Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 190 · 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) capacitor (b) switch (c) junction (d) resistor
2. 2.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
3. 3.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a dot where wires meet (c) a long and a short line (d) two equal parallel lines
4. 4.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) junction (c) LED (d) ammeter
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
7. 7.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a long and a short line (c) two or more cell symbols (d) a circle with A inside
8. 8.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
9. 9.Which drawing is the symbol for a switch? (a) a long and a short line (b) a circle with an X in it (c) a line lifted at a gap (d) two or more cell symbols
10. 10.True or false: a small empty box is the symbol for a wire. (a) False (b) True
11. 11.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a long and a short line (c) two equal parallel lines (d) a circle with V inside
12. 12.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) junction (c) resistor (d) cell
13. 13.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) cell (c) wire (d) resistor
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
15. 15.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
16. 16.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) diode (c) bulb (d) LED
18. 18.Which drawing is the symbol for an LED? (a) a small empty box (b) a circle with an X in it (c) a long and a short line (d) triangle, bar and arrows
19. 19.Which drawing is the symbol for a resistor? (a) a straight line (b) a dot where wires meet (c) a small empty box (d) one tall, one short bar
20. 20.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a long and a short line (c) two or more cell symbols (d) a line lifted at a gap
21. 21.True or false: a straight line is the symbol for a wire. (a) True (b) False
22. 22.True or false: one tall, one short bar is the symbol for a capacitor. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) cell (c) wire (d) capacitor
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) motor (c) battery (d) junction
25. 25.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) a plain rectangle (c) a circle with V inside (d) a long and a short line
26. 26.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) motor (c) resistor (d) LED
27. 27.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
28. 28.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) diode (c) resistor (d) LED
30. 30.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) battery (c) LED (d) ammeter
32. 32.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a line lifted at a gap (c) triangle against a bar (d) a circle with M inside
33. 33.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
34. 34.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a plain rectangle (c) two equal parallel lines (d) many long-short pairs
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) diode (c) bulb (d) switch
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) ammeter (c) capacitor (d) battery
37. 37.True or false: one tall, one short bar is the symbol for a wire. (a) True (b) False
38. 38.Which drawing is the symbol for a wire? (a) a circle with V inside (b) a circle with a cross (c) a straight line (d) a circle with M inside
39. 39.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
40. 40.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True

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