- #1
vishureddy
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Why Biot and Savarat assumed that magnetic field due to a current carrying wire is proportional to current ?
How did they measure the current in those days when even ohms law was not discovered?
If they have used an instrument like an ammeter there is a problem with it .An ammeter works on an assumption that the deflection of the coil in it is proportional to current which in turn is proportional to magnetic field .How can we use this assumption to define the magnetic field around a wire?
What are the first definitions given to magnetic field and current?
And my last doubt is
is biot savarats law consistent with laws in laws in physics that are established before it?
thanks a lot in advance for clarifying the doubts
How did they measure the current in those days when even ohms law was not discovered?
If they have used an instrument like an ammeter there is a problem with it .An ammeter works on an assumption that the deflection of the coil in it is proportional to current which in turn is proportional to magnetic field .How can we use this assumption to define the magnetic field around a wire?
What are the first definitions given to magnetic field and current?
And my last doubt is
is biot savarats law consistent with laws in laws in physics that are established before it?
thanks a lot in advance for clarifying the doubts