First is the first law of thermodynamics?
The overall energy of any system remains constant. Which means, Energy can neither be created nor be destroyed but can be transformed into different forms.
What does a right hand thumb rule states?
A current carrying conductor exhibits a magnetic field around itself when there is a passage of electric current in it. When we hold the current carrying conductor keeping thumb upwards, The thumb direction indicates the direction of current and the curled fingers indicate the direction of magnetic field.
What is Newton's first law of motion?
An object when in the state of rest or in the state of motion tend to be in that state until unless and external forces is acted upon it.