Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 309 · 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) the longer line (b) both lines (c) the shorter line (d) neither line
2. 2.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) junction (c) capacitor (d) LED
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) bulb (c) battery (d) voltmeter
5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) resistor (c) junction (d) ammeter
6. 6.True or false: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
7. 7.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
8. 8.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) battery (c) LED (d) cell
10. 10.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a straight line (c) a plain rectangle (d) triangle against a bar
11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
12. 12.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) resistor (c) bulb (d) ammeter
13. 13.Which drawing is the symbol for a diode? (a) triangle against a bar (b) one tall, one short bar (c) a circle with A inside (d) two equal parallel lines
14. 14.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) ammeter (c) resistor (d) LED
16. 16.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) wire (c) LED (d) diode
17. 17.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) bulb (c) cell (d) resistor
19. 19.Which drawing is the symbol for a battery? (a) a long and a short line (b) triangle, bar and arrows (c) many long-short pairs (d) a circle with A inside
20. 20.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) ammeter (c) motor (d) resistor
21. 21.Which drawing is the symbol for a motor? (a) a straight line (b) a circle with M inside (c) a circle with an X in it (d) a circle with A inside
22. 22.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a line lifted at a gap (c) a circle with A inside (d) a straight line
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) motor (c) capacitor (d) bulb
24. 24.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
25. 25.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
26. 26.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
27. 27.Which drawing is the symbol for a capacitor? (a) a straight line (b) a line lifted at a gap (c) two equal parallel lines (d) triangle against a bar
28. 28.Which drawing is the symbol for a junction? (a) a circle with A inside (b) two equal parallel lines (c) a dot where wires meet (d) triangle against a bar
29. 29.True or false: a circle with A inside is the symbol for a diode. (a) False (b) True
30. 30.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) motor (c) switch (d) battery
32. 32.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
33. 33.True or false: two equal parallel lines is the symbol for a junction. (a) False (b) True
34. 34.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a long and a short line (c) a small empty box (d) a line lifted at a gap
35. 35.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
36. 36.True or false: two equal parallel lines is the symbol for a wire. (a) True (b) False
37. 37.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) many long-short pairs (c) two or more cell symbols (d) triangle, bar and arrows
38. 38.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a long and a short line (c) a circle with V inside (d) many long-short pairs
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) battery (c) bulb (d) resistor
40. 40.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) switch (c) resistor (d) motor

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