[" Two circular coils "P" and "Q" are made from similar wires but the radius of "Q" is twice "],[" that of "P" .What should be the value of potential difference across them so that the "],[" magnetic induction at their centres may be the same? "]

Two circular coils P and Q are made from similar wire but radius of Q is twice that of P . Relation between the values of potential difference across them so that the magnetic induction at their centers may be the same is

Two circular coils 1 and 2 are made from the same wire but the radius of the 1st coil is twice that of the 2nd coil. What is the ratio of potentail difference applied across them so that the magnetic field at their centres is the same?

Two circular coils 1 and 2 are made from the same wire but the radius of the 1st coil is twice that of the 2nd coil. What is the ratio of potentail difference applied across them so that the magnetic field at their centres is the same?

Two circular coils 1 and 2 are made from the same wire but the radius of the 1st coil is twice that of the 2nd coil. What is the ratio of potentail difference applied across them so that the magnetic field at their centres is the same?

Two circular coils are made from a uniform wire the ratio of radii of circular coils are 2.3 & no. of turns is 3:4. If they are connected in parallel across a battery. A.: Find ratio of magnetic induction at their centres. B: Find the ratio magnetic moments of 2 coils