each equal current coming out of page. Four points A
A charge Q is uniformly distributed over the surface of non – conducting disc of radius R. The disc rotates about an axis perpendicular to its plane and passing through its centre with an angular to its plane and passing through its centre of the disc. If we keep both the amount of charge placed on the disc and its angular velocity to be constant and vary the radius of the disc then the variation of the magnetic induction at the centre of the disc will be represented by the figure:
17
Oct
A charge Q is uniformly distributed over the surface of non – conducting disc of radius R. The disc rotates about an axis perpendicular to its plane and passing through its centre with an angular to its plane and passing through its centre of the disc. If we keep both the amount of charge placed [...]
A toroid of total 1000 turns is made by using a tore of average radius 25cm. What is the magnetic induction inside the tore if a current of2A is passed through it and the relative magnetic permeability of the tore material is μ=100
17
Oct
A toroid of total 1000 turns is made by using a tore of average radius 25cm. What is the magnetic induction inside the tore if a current of2A is passed through it and the relative magnetic permeability of the tore material is μ=100 B Cand D are also marked in the figure each equal current [...]
A system consists of two parallel plane carrying currents producing a uniform magnetic field of induction B between the planes. Outside this space there is no magnetic field. The magnetic force acting per unit area of each plane is found to be B2/Nμ0. Find N.
17
Oct
A system consists of two parallel plane carrying currents producing a uniform magnetic field of induction B between the planes. Outside this space there is no magnetic field. The magnetic force acting per unit area of each plane is found to be B2/Nμ0. Find N. B Cand D are also marked in the figure each [...]
An elevator carrying a charge of 0.5 C is moving down with a velocity of 5 × 10^3 m/s. The elevator is 4 m from the bottom and 3 m horizontally from P as shown in Fig. What magnetic field (μT) does it produce at point P
17
Oct
An elevator carrying a charge of 0.5 C is moving down with a velocity of 5 × 10^3 m/s. The elevator is 4 m from the bottom and 3 m horizontally from P as shown in Fig. What magnetic field (μT) does it produce at point P B Cand D are also marked in the [...]
Figure shows arrangement of three long parallel conducting wires, each equal current coming out of page. Four points A, B , Cand D are also marked in the figure, showing distance between points and wires. All points lie in the same plane which dl is perpendicular to the wires.
17
Oct
Figure shows arrangement of three long parallel conducting wires, each equal current coming out of page. Four points A, B , Cand D are also marked in the figure, showing distance between points and wires. All points lie in the same plane which dl is perpendicular to the wires. B Cand D are also marked [...]