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The bulb glows because the filaments get heated up due to current and lights up. • The bulb work on the principle that when a metal is heated it starts emitting light at some point.is turned on • When the switch is turned, an electric current is passed through • When an electric current is passed through a conductor it generates heat, H = IR2t (Joule's equation), where I is the current, R is the resistance of the conductor and t is the time for which current is passed. • This heat is used by the atomic electrons to get excited to higher energy levels from the ground state. • When these electrons return back to their ground state, a light photon is emitted, and this is how a bulb glows.
Consider the following statements in the context of the rule ofNandas:
1. Alexander invaded North-Western India during their reign
2. ...
Consider the following statements with reference to Mansabdari system:
1. It was an administrative system responsible for looking after the civil...
Which of the following was not in the AKBAR’S Navratnas?
During the Delhi Sultanate, which region gained fame for juristic learning?
Recently, the Government of India gave the approval to administer Remdesivir for emergency use in patients suffering from COVID-19. In this context, con...
In this, tales from Mahabharata are sung as a ballad and one or two episodes are chosen for the night’s performance. The main singer continuously sits...
Who among the following is the Youngest President of Indian National Congress?
Match the following crematorium of the famous persons
Famous persons Crematorium
...Which of the following is not correct with reference to administration under Shivaji?
Consider the followingstatements:
1. Charvaka was the main expounder of this philosophy
2. The philosophy is materialistic in nature
