A copper wire wound on a iron rod is called as iron cored inductor. Basically iron cored inductor having two components resistance and inductance. These two parameters depend up on the permeability of the core. In this paper variation of induced elecctro motive force (EMF) in the secondary coil placed on the same core at different magnetic fields are presented. A detailed study of dependence of resistance and inductance is also presented in this paper.

The academic and business community discusses the research avenues and practical implementations of blockchains continuously with the ongoing growth and implementation of blockchain technologies. The blockchain also has its advantages in the economy, manufacturing, medical and other industries. Most view Blockchain as a perturbing key technology. Although several academics have recognized the importance of blockchain, blockchain technology is still in its early stages. The latest academic literature on blockchain in industry and economics is therefore analyzed in this article. We identify the most high-quality articles, active countries and most popular keywords based on a comprehensive analysis of literature published on the Web of Science. In addition to that, the clustering analyses are carried out, and the following study areas has been identified: 'economic gain,' 'blockchain technology,' 'initial coin offerings’, 'fintech innovation’ and 'sharing economies’.

A copper wire wound on a iron rod is called as iron cored inductor. Basically iron cored inductor having two components resistance and inductance. These two parameters depend up on the permeability of the core. In this paper variation of induced elecctro motive force (EMF) in the secondary coil placed on the same core at different magnetic fields are presented. A detailed study of dependence of resistance and inductance is also presented in this paper.

A copper wire wound on an iron rod called as an iron cored inductor. The impedance of an iron cored inductor can be varied by the different methods. In those, one of the methods is, placing an iron cored coil in the aluminium enclosure. Due to this, the effective impedance of an iron cored inductor is de-creased. If another coil is wound on the same core and placed in the aluminium enclosure, the induced EMF in another coil has increased. The detailed study of this effect is presented with numerical analysis in this paper.