Two parallel circular coils of equal radii having equal number of turns placed coaxially and separated by a distance equal to the radii of the coils carrying equal currents in same direction are known as
A. Biot-savart’s coils
B. Ampere’s coils
C. Helmholtz coils
D. Oersted’s coils.
Answer:C
Two parallel circular coils of equal radii having equal number of turns placed coaxially and separated by a distance equal to the radii of the coils carrying equal currents in same direction are known as
A. Biot-savart’s coils B. Ampere’s coils C. Helmholtz coils D. Oersted’s coils.