Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 983 · 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) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
2. 2.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
3. 3.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) a circle with an X in it (c) a straight line (d) a long and a short line
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
5. 5.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
7. 7.Which drawing is the symbol for a diode? (a) triangle against a bar (b) two or more cell symbols (c) many long-short pairs (d) one tall, one short bar
8. 8.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) many long-short pairs (c) two equal parallel lines (d) a circle with an X in it
9. 9.True or false: many long-short pairs is the symbol for a capacitor. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) bulb (c) resistor (d) ammeter
11. 11.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a straight line (c) a plain rectangle (d) a circle with M inside
12. 12.True or false: a circle with an X in it is the symbol for a voltmeter. (a) True (b) False
13. 13.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
14. 14.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) ammeter (c) switch (d) LED
16. 16.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) two or more cell symbols (c) a circle with an X in it (d) a dot where wires meet
17. 17.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) bulb (c) switch (d) wire
18. 18.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a small empty box (c) a circle with M inside (d) a circle with A inside
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) motor (c) resistor (d) cell
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) bulb (c) battery (d) cell
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) junction (c) diode (d) ammeter
22. 22.True or false: a straight line is the symbol for a wire. (a) False (b) True
23. 23.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
24. 24.Which drawing is the symbol for a cell? (a) a circle with A inside (b) one tall, one short bar (c) two or more cell symbols (d) a circle with V inside
25. 25.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
26. 26.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a plain rectangle (c) a circle with V inside (d) a circle with M inside
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) junction (c) battery (d) voltmeter
28. 28.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) LED (c) bulb (d) battery
30. 30.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
31. 31.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a long and a short line (c) a small empty box (d) a plain rectangle
32. 32.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) motor (c) junction (d) battery
33. 33.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with V inside (c) a straight line (d) a long and a short line
34. 34.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a straight line (c) a circle with A inside (d) two equal parallel lines
35. 35.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) ammeter (c) voltmeter (d) resistor
37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) cell (c) LED (d) bulb
38. 38.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) many long-short pairs (c) a circle with a cross (d) a line lifted at a gap
39. 39.Which drawing is the symbol for an LED? (a) triangle against a bar (b) a line lifted at a gap (c) a circle with a cross (d) triangle, bar and arrows
40. 40.Which drawing is the symbol for a wire? (a) a small empty box (b) a line lifted at a gap (c) a straight line (d) a circle with an X in it

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