Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 915 · 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) symbols are heavier (c) to make it colourful (d) to hide the circuit
2. 2.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) battery (c) motor (d) ammeter
3. 3.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
4. 4.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
5. 5.True or false: many long-short pairs is the symbol for a wire. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) diode (c) bulb (d) resistor
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
8. 8.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a small empty box (c) a circle with a cross (d) many long-short pairs
9. 9.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) ammeter (c) switch (d) voltmeter
11. 11.True or false: a circle with V inside is the symbol for a motor. (a) True (b) False
12. 12.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with M inside (c) a circle with a cross (d) one tall, one short bar
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) switch (c) diode (d) junction
15. 15.True or false: a circle with M inside is the symbol for a wire. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) wire (c) motor (d) battery
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) switch (c) motor (d) voltmeter
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) bulb (c) battery (d) switch
19. 19.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
20. 20.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
21. 21.Which drawing is the symbol for a wire? (a) a straight line (b) a plain rectangle (c) a circle with A inside (d) a circle with V inside
22. 22.True or false: a long and a short line is the symbol for a diode. (a) True (b) False
23. 23.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a line lifted at a gap (c) a circle with M inside (d) a small empty box
24. 24.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with V inside (d) a plain rectangle
25. 25.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) wire (c) cell (d) diode
26. 26.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) True (b) False
27. 27.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a small empty box (c) a circle with A inside (d) a circle with a cross
28. 28.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a circle with an X in it (c) a small empty box (d) triangle against a bar
29. 29.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
30. 30.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
31. 31.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a line lifted at a gap (c) a circle with V inside (d) a long and a short line
32. 32.True or false: two or more cell symbols is the symbol for an LED. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) voltmeter (c) battery (d) resistor
34. 34.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) capacitor (c) cell (d) battery
35. 35.True or false: two equal parallel lines is the symbol for a resistor. (a) False (b) True
36. 36.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
37. 37.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
38. 38.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False
39. 39.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) triangle, bar and arrows (c) a small empty box (d) a line lifted at a gap
40. 40.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) two or more cell symbols (c) a line lifted at a gap (d) a circle with an X in it

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids