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Physics Questions and Answers

TRB Model Questions
 
5. The primary cell widely used is
 
  • A. Lead acid accumulator
  • B. Lechlanche cell
  • C. Daniel cell
  • D. Dry cell
Answer: D.
Dry cell
 
6. Mechanical energy is converted into electrical energy in a
 
  • A. Microphone
  • B. Loud speaker
  • C. Generator
  • D. Motor
Answer: C.
Generator
 
 
7. The unit of work done is equal to
 
  • A. Newton
  • B. Joule metre
  • C. Joule
  • D. Kg m
Answer: C.
Joule
 
8. The magnetic effects of electric current was discovered by
 
  • A. Oersted
  • B. Faraday
  • C. Maxwell
  • D. Ampere
Answer: A.
Oersted