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CBSE->Plus 1 Biology Science Questions

Total Questions 411
What is the function of commutator rings in the electric motor ?
List the factors affecting the strength of an electromagnet ?
When is the maximum force exerted on a current carrying conductor while it is kept in a magnetic field ?
How can the direction of force on a current -carrying conductor ,kept in a magnetic field ,be changed ?
What is a solenoid ?
What is the function of a galvanometer ?
Give some differences between electric motor and generator ?
What are direct and alternating currents ?
Give some uses of electromagnets ?
What is electromagnetic induction ?
Why the printed industry boomed in China in the 17th century ?
For what purpose was this material used ?
Who was the major producer of printed material in China ?
Gandhi said the fight for Swaraj is a fight for liberty of speech, liberty of the press, and freedom of association. Substantiate ?
How did the print culture create the conditions for French Revolution? Explain ?
How did the uses of print technology develop in China by the 17th century ?
Discuss the position of printing technology in 17th century China. How was it affected by westeern technology in 19th century ?
Describe the progress of print in Japan ?
Describe in about 120 words the progress of print in Japan ?
State any three points of importance of penny chapbooks ?