A small coil `C` with `N=200` turns is mounted on one end of a balance beam and introduced between the poles of an electromagnet as shown in figure. The cross sectional area of coil is `A=1.0 cm^(2)`, length of arm `OA` of the balance beam is `l=30 cm`. When there is no current in the coil the balance is in equilibrium. On passing a current `I=22 mA` through the coil the equilibrium is restored by putting the additional counter weight of mass `Deltam=60 mg` on the balance pan. Find the magnetic induction at the spot where coil is located.

A small coil C with N = 100 turns is mounted on one end of a balance beam and introduced between the poles of an electromagnet as shown in the figure. The cross-sectional area of coil is A = 1.0 cm^(2) , length of arm OA of the balance beam is l = 20 cm. When there is no current in the coil, the balance is in equilibrium. On passing a current i = 18 mA through the coil, the equilibrium is restored by putting the additional counter weight of mass Delta m = 40 mg on the balance pan. Find the magnetic induction at the spot where coil is located.

A small coil C with N = 200 turns is mounted on one end of a balance beam and introduced between the poles of an electromagnet as shown in Fig. The cross sectinal area of the coil is S = 1.0 cm^(2) , the length of the arm OA of the balance beam is l = 30 cm . When there is no current in the coil the balance is irl equilibrium. On passing a current I = 22 mA through the coil the equiibrium is restroed by putting the additional counterweight of mass Delta m = 60 mg ont he balnace pan. Find the magnetic induction at the spot where the coil is located.

A small coil C with N=200 turns is mounted on one end of a balance beam and introduced between the poles of an electromagnetic as shown in Fig. The area of the coils is S=1cm^2 , the length of the right arm of the balance beam is l=30cm. When there is no current in the coil the balance is in equilibrium. On passing is a currentI=22mA through the coil, equilibrium is restored by putting an additional weight of mass m=60mg on the balance pan. Find the magnetic induction field (in terms of x 10^-1T ) between the poles of the electromagnetic assuming it to be uniform.

A small coil C with N=200 turns is mounted on one end of a balance beam and introduced between the poles of an electromagnetic as shown in Fig. The area of the coils is S=1cm^2 , the length of the right arm of the balance beam is l=30cm. When there is no current in the coil the balance is in equilibrium. On passing is a currentI=22mA through the coil, equilibrium is restored by putting an additional weight of mass m=60mg on the balance pan. Find the magnetic induction field (in terms of x 10^-1T ) between the poles of the electromagnetic assuming it to be uniform.

A small coil is introduced between the poles of an electromagnet so that its axis coincides with the magnetic field direction. The cross-sectional area of the coil is equal to S = 3.0 mm^2 , the number of turns is N = 60 . When the coil turns through 180^@ about its diameter, a galvanometer connected to the coil indicates a charge q = 4.5muC flowing through it. Find the magnetic induction magnitude between the poles, provided the total resistance of the electric circuit equals R = 40 Omega .

A small coil is introduced between the poles of an electromagnet so that its axis coincides with the magnetic field direction. The cross-sectional area of the coil is equal to S = 3.0 mm^2 , the number of turns is N = 60 . When the coil turns through 180^@ about its diameter, a galvanometer connected to the coil indicates a charge q = 4.5muC flowing through it. Find the magnetic induction magnitude between the poles, provided the total resistance of the electric circuit equals R = 40 Omega .

A coil of self inductance 20 mH, having 50 turns, carries a current of 300 mA. If the area of the coil is 2cm^(2) , the magnetic induction at the centre of the coil is

A small coil is positionaed so that its axis lies along the axis of a large bar agnet, as shown in the figure. The coil has a cross-sectional area of 0.40 cm^2 and contains 150 turns of wire. The average magnetic flux density B through the coil aries with the distance x between the face of the magnet and the plane of the coil as shown in the figure. The coil is 5.0 cm from the face of the magnet to determine the magnetic flux density in the coil.

A coil of length L, carries a current i. The magnetic moment of coil is proportional to