Q) What do u mean by magnetic induction? what is the dimensioin of magnetic induction?

Ans) Electromagnetic induction is the manufacture of a potential difference (voltage) across a conductor when it is exposed to a varying magnetic field.
1. Michael Faraday is generally credited with the discovery of induction in 1831 while it may have been anticipated by the work of Francesco Zantedeschi in 1829.
2. Around 1830 to 1832, Joseph Henry made a same discovery, but did not publish his findings until later.
3. Faraday's law of induction is a basic law of electromagnetism that predicts how a magnetic field will interact with an electric circuit to make an electromotive force (EMF). It is the fundamental operating principle of inductors, transformers and many types of electrical generators, motor and solenoids.
4. The Maxwell-Faraday equation is a generalisation of Faraday''s law, and forms one of Maxwell''s equations.

Dimension of magnetic induction given :
B   is tesla [MT-2A-1]