why was michael faraday's dynamo essential to later inventions, such as light bulb, and new industrial processes?

1) both gandhiji and bhagat singh believed in ‘inquilab’. however, both of them differed in their strategy to bring about ‘inquilab’. find out a. what does ‘inquilab’ mean? b. what was the strategy followed by the two leaders in bringing about ‘inquilab’? answer it quickly pls