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Option: C .... is correct...
strength of magnetic field ...
B = uNi .....
where, u - Permeability
N - no of turns per unit length
i - current through the wire...
so, magnetic field depends on no of turns and current in the turns ..
in Set-up:X, no of cells is more than in Set-up:Y. so, the current in X is more than in Y. so, magnetic field is more.
No of turns in X is more than in Y, so no of turns per unit length in X is more than Y. So, field strength is more in X than Y.
strength of magnetic field ...
B = uNi .....
where, u - Permeability
N - no of turns per unit length
i - current through the wire...
so, magnetic field depends on no of turns and current in the turns ..
in Set-up:X, no of cells is more than in Set-up:Y. so, the current in X is more than in Y. so, magnetic field is more.
No of turns in X is more than in Y, so no of turns per unit length in X is more than Y. So, field strength is more in X than Y.
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