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Level 0 Answer Key: Magnetic Effects

Class: 10 Science Topic: Foundation & Objective Max. Questions: 100
Section A: Multiple Choice Questions (1-20)
  1. (b) Oersted
  2. (c) Parallel and Straight
  3. (a) Maxwell's Right Hand Thumb Rule
  4. (b) Tesla
  5. (b) Motor
  6. (b) Faraday
  7. (b) Soft Iron
  8. (c) Red
  9. (b) 50 Hz
  10. (a) Live
  11. (b) Poles
  12. (b) Too many appliances connected to a single socket
  13. (b) Live touches Neutral
  14. (c) 0V
  15. (b) Electromagnetic Induction
  16. (b) DC Motor
  17. (d) All of these
  18. (a) Fleming's Right Hand Rule
  19. (c) Never intersect
  20. (d) Heating effect of current
Section B: Fill in the Blanks (21-40)
  1. Iron
  2. repel
  3. attract
  4. North
  5. South, North
  6. concentric
  7. solenoid
  8. Galvanometer
  9. Alternating (AC)
  10. Direct (DC)
  11. 5 A
  12. Earth
  13. Energy
  14. Direction
  15. intersect
  16. compass / iron filings
  17. Positive
  18. current / number of turns
  19. temporary
  20. permanent
Section C: True or False (41-60)
  1. True
  2. True
  3. True
  4. True
  5. False (It gives force/motion direction)
  6. True
  7. False
  8. True
  9. False (Low melting point)
  10. True
  11. True
  12. False (Red for Live, Green for Earth)
  13. False (North-South direction)
  14. False
  15. True
  16. False (Discovered Magnetic effect)
  17. True
  18. False (Maximum when Perpendicular)
  19. True
  20. True
Section D: Match the Following (61-80)
Set 1
  1. 61 - (c) Magnetic Effect of Current
  2. 62 - (e) Electromagnetic Induction
  3. 63 - (b) Force Direction
  4. 64 - (a) Direction of Induced Current
  5. 65 - (d) Direction of Magnetic Field
Set 2
  1. 66 - (b) Electrical to Mechanical Energy
  2. 67 - (d) Mechanical to Electrical Energy
  3. 68 - (a) Protects component...
  4. 69 - (c) Detects presence of current
  5. 70 - (e) Acts like a bar magnet
Set 3
  1. 71 - (b) Red
  2. 72 - (c) Black
  3. 73 - (a) Green
  4. 74 - (e) Frequency of AC
  5. 75 - (d) Mains Potential Difference
Set 4
  1. 76 - (c) Temporary Magnet Core
  2. 77 - (b) Permanent Magnet
  3. 78 - (a) SI Unit of Magnetic Field
  4. 79 - (d) Alloy for Magnets
  5. 80 - (e) Field around straight wire
Section E: One Word Answer (81-100)
  1. Compass
  2. 90 degrees (Perpendicular)
  3. 0 degrees (Parallel) or 180 degrees
  4. Split ring commutator
  5. Clock Face Rule
  6. Earthing
  7. No
  8. Uniform and Parallel
  9. South Pole
  10. North Pole
  11. Magnetic Field Strength (Flux density)
  12. Direct Current (DC)
  13. Alternating Current (AC)
  14. Doubled
  15. Halved
  16. Joule (Joule's Law)
  17. Lodestone / Magnetite
  18. Miniature Circuit Breaker
  19. Dipole (like a Bar Magnet)
  20. No