are held by insulating threads of length L and are in equilibrium as shown in the gigure
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A symmetric star shaped state current I as shown in the figure. The distance between the diametrically opposite vertices of the star is 4a. The magnitude of the magnetic field at the centre of the loop is
18
Oct
A symmetric star shaped state current I as shown in the figure. The distance between the diametrically opposite vertices of the star is 4a. The magnitude of the magnetic field at the centre of the loop is are held by insulating threads of length L and are in equilibrium as shown in the gigure both [...]
A long insulated copper wire is closely wound as a spiral of N turns. The spiral has inner radius a and outer radius b. The spiral lies in the xy-plane and a steady current I flows through the wire. The z-component of the magnetic field at the centre of the spiral is
18
Oct
A long insulated copper wire is closely wound as a spiral of N turns. The spiral has inner radius a and outer radius b. The spiral lies in the xy-plane and a steady current I flows through the wire. The z-component of the magnetic field at the centre of the spiral is are held by [...]
Two identical wires A and B , each of length ‘l’, carry the same current I. Wire A is bent into a circle of radius R and wire B is bent to form a square of side ‘a’ . If BAandBB are the values of magnetic field at the centres of the circle and square respectively , then the ratio BA/BB is :
18
Oct
Two identical wires A and B , each of length ‘l’, carry the same current I. Wire A is bent into a circle of radius R and wire B is bent to form a square of side ‘a’ . If BAandBB are the values of magnetic field at the centres of the circle and square [...]
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are held by insulating threads of length L and are in equilibrium as shown in the gigure ,
both with current I ,
each of length 'l' ,
Two identical wires A and B ,
Two long current carrying thin wires ,
With threads making an angle θ with the vertical . If wires have mass λ per unit length then the value of I is : ,
Two long current carrying thin wires , both with current I, are held by insulating threads of length L and are in equilibrium as shown in the gigure , With threads making an angle θ with the vertical . If wires have mass λ per unit length then the value of I is :
17
Oct
Two long current carrying thin wires , both with current I, are held by insulating threads of length L and are in equilibrium as shown in the gigure , With threads making an angle θ with the vertical . If wires have mass λ per unit length then the value of I is : are [...]