Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 782 · 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.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
2. 2.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) resistor (c) bulb (d) motor
3. 3.True or false: two or more cell symbols is the symbol for a bulb. (a) False (b) True
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
5. 5.True or false: two equal parallel lines is the symbol for a resistor. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) cell (c) switch (d) voltmeter
7. 7.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
8. 8.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) two equal parallel lines (c) a dot where wires meet (d) a circle with an X in it
9. 9.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with M inside (c) many long-short pairs (d) a circle with a cross
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) voltmeter (c) wire (d) junction
11. 11.Which drawing is the symbol for a diode? (a) a straight line (b) a line lifted at a gap (c) triangle against a bar (d) a plain rectangle
12. 12.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) two equal parallel lines (c) one tall, one short bar (d) many long-short pairs
13. 13.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a small empty box (c) a long and a short line (d) many long-short pairs
14. 14.True or false: two or more cell symbols is the symbol for a switch. (a) True (b) False
15. 15.True or false: a straight line is the symbol for a switch. (a) True (b) False
16. 16.True or false: a small empty box is the symbol for a motor. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) cell (c) motor (d) battery
18. 18.Which drawing is the symbol for a switch? (a) a straight line (b) a circle with an X in it (c) a circle with M inside (d) a line lifted at a gap
19. 19.True or false: a straight line is the symbol for a wire. (a) False (b) True
20. 20.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) two or more cell symbols (c) one tall, one short bar (d) a circle with A inside
21. 21.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) capacitor (c) junction (d) cell
22. 22.Which drawing is the symbol for a wire? (a) many long-short pairs (b) one tall, one short bar (c) a straight line (d) two or more cell symbols
23. 23.True or false: two equal parallel lines is the symbol for a motor. (a) False (b) True
24. 24.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a circle with V inside (c) two or more cell symbols (d) one tall, one short bar
25. 25.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
26. 26.Which drawing is the symbol for an LED? (a) a long and a short line (b) one tall, one short bar (c) a plain rectangle (d) triangle, bar and arrows
27. 27.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) cell (c) ammeter (d) voltmeter
28. 28.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
29. 29.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
30. 30.Which drawing is the symbol for a cell? (a) a circle with a cross (b) one tall, one short bar (c) many long-short pairs (d) triangle against a bar
31. 31.True or false: many long-short pairs is the symbol for an LED. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) ammeter (c) capacitor (d) cell
33. 33.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) wire (c) resistor (d) cell
34. 34.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
35. 35.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a long and a short line (c) a circle with an X in it (d) two equal parallel lines
36. 36.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) ammeter (c) motor (d) LED
38. 38.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) two equal parallel lines (c) a circle with A inside (d) a circle with M inside
39. 39.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
40. 40.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) triangle, bar and arrows (c) two or more cell symbols (d) a circle with an X in it

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