Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 275 · 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.True or false: a circle with V inside is the symbol for a resistor. (a) False (b) True
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) junction (c) ammeter (d) switch
4. 4.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
5. 5.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) ammeter (c) resistor (d) wire
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) capacitor (c) cell (d) junction
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) cell (c) battery (d) diode
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
10. 10.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) capacitor (c) switch (d) diode
11. 11.Which drawing is the symbol for a switch? (a) a circle with a cross (b) two or more cell symbols (c) triangle, bar and arrows (d) a line lifted at a gap
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) voltmeter (c) diode (d) wire
13. 13.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) one tall, one short bar (c) a circle with M inside (d) a small empty box
14. 14.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) one tall, one short bar (c) a straight line (d) a small empty box
15. 15.True or false: a line lifted at a gap is the symbol for an LED. (a) False (b) True
16. 16.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
17. 17.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) triangle, bar and arrows (c) a circle with V inside (d) a dot where wires meet
18. 18.Which drawing is the symbol for a diode? (a) a long and a short line (b) triangle against a bar (c) two or more cell symbols (d) one tall, one short bar
19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) wire (c) battery (d) diode
20. 20.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) one tall, one short bar (c) a line lifted at a gap (d) a circle with M inside
21. 21.True or false: a small empty box is the symbol for a switch. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) diode (d) LED
23. 23.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
24. 24.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a dot where wires meet (c) triangle against a bar (d) a straight line
25. 25.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a plain rectangle (c) a dot where wires meet (d) a long and a short line
26. 26.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) a line lifted at a gap (c) a circle with V inside (d) a circle with an X in it
27. 27.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
28. 28.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
29. 29.Which drawing is the symbol for a motor? (a) a circle with M inside (b) two or more cell symbols (c) one tall, one short bar (d) two equal parallel lines
30. 30.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with A inside (c) a plain rectangle (d) a long and a short line
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) ammeter (c) capacitor (d) motor
32. 32.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
33. 33.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with a cross (c) a small empty box (d) many long-short pairs
34. 34.Which drawing is the symbol for a cell? (a) a circle with M inside (b) triangle, bar and arrows (c) one tall, one short bar (d) a plain rectangle
35. 35.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with a cross (c) a circle with A inside (d) a circle with M inside
36. 36.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) wire (c) cell (d) motor
38. 38.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) wire (c) LED (d) motor
40. 40.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) resistor (c) cell (d) battery

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