Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 974 · 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.Which drawing is the symbol for an LED? (a) a circle with M inside (b) a straight line (c) a small empty box (d) triangle, bar and arrows
2. 2.Which drawing is the symbol for a junction? (a) a straight line (b) one tall, one short bar (c) triangle against a bar (d) a dot where wires meet
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) junction (c) switch (d) bulb
4. 4.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
5. 5.Which drawing is the symbol for a diode? (a) a circle with a cross (b) triangle, bar and arrows (c) a straight line (d) triangle against a bar
6. 6.True or false: a circle with V inside is the symbol for an ammeter. (a) True (b) False
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
8. 8.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) LED (c) cell (d) resistor
9. 9.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
10. 10.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
11. 11.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with a cross (c) a circle with V inside (d) a circle with A inside
12. 12.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) diode (c) junction (d) resistor
13. 13.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) bulb (c) cell (d) LED
14. 14.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) ammeter (c) battery (d) wire
15. 15.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) capacitor (c) motor (d) switch
16. 16.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
17. 17.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
19. 19.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
20. 20.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
21. 21.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a straight line (c) a line lifted at a gap (d) a circle with M inside
22. 22.True or false: a straight line is the symbol for a wire. (a) True (b) False
23. 23.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) cell (c) switch (d) battery
25. 25.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a circle with A inside (c) a dot where wires meet (d) a small empty box
26. 26.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) voltmeter (c) bulb (d) cell
27. 27.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False
28. 28.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) junction (c) cell (d) resistor
30. 30.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
31. 31.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with M inside (c) a straight line (d) a circle with a cross
32. 32.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) motor (c) resistor (d) battery
33. 33.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) one tall, one short bar (c) a plain rectangle (d) a circle with a cross
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) resistor (c) bulb (d) junction
35. 35.True or false: a small empty box is the symbol for a voltmeter. (a) True (b) False
36. 36.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
37. 37.Which drawing is the symbol for an ammeter? (a) a small empty box (b) many long-short pairs (c) two or more cell symbols (d) a circle with A inside
38. 38.Which drawing is the symbol for a battery? (a) a long and a short line (b) one tall, one short bar (c) two or more cell symbols (d) a circle with V inside
39. 39.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
40. 40.True or false: two or more cell symbols is the symbol for a voltmeter. (a) True (b) False

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