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Calculate the field at the centre of a semi-circular wire of radius R in situation given in Figs (1), (2) and (3) if the straight wire is of infinite length.
05
Sep
Calculate the field at the centre of a semi-circular wire of radius R in situation given in Figs (1), (2) and (3) if the straight wire is of infinite length. (2) and (3) if the straight wire is of infinite length. Calculate the field at the centre of a semi-circular wire of radius R in [...]
In the given network of wires shown in figure, a current i is allowed to flow. Calculate the magnetic field at the centre O. If angle alpha is equal to 90, then what will be the value of magnetic induction at O?
05
Sep
In the given network of wires shown in figure, a current i is allowed to flow. Calculate the magnetic field at the centre O. If angle alpha is equal to 90, then what will be the value of magnetic induction at O? a current i is allowed to flow. Calculate the magnetic field at the [...]
Two long fixed parallel vertical conducting rails AB and CD are separated by a distance L. They are connected by resistance R and a capacitance C at two ends as shown in the figure. There is a uniform magnetic field B directed horizon- tally into the plane of the figure. A horizontal metallic bar of length L and mass m can slide without friction along the rails. The bar is released from rest at t = 0. Neglect resistance of bar and rails and also neglect the self inductance of the loop.find the velocity of the rod at any time?
05
Sep
Two long fixed parallel vertical conducting rails AB and CD are separated by a distance L. They are connected by resistance R and a capacitance C at two ends as shown in the figure. There is a uniform magnetic field B directed horizon- tally into the plane of the figure. A horizontal metallic bar of [...]
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A conducting rod of length l slides at constant velocity v on two parallel conducting rails ,
A square loop of side l having resistance R moves with constant velocity v ,
Twelve wires of equal lengths are connected in the form of skelton cube which is moving with a velocity v in the direction of magnetic field B.find the emf in each arm of cube. ,
Two long parallel horizontal rails a ,
A current I flows in a long straight wire with cross-section having the form of a thin half-ring of radius R . Find the magnetic field at point o situated on the axis of wire.
05
Sep
A current I flows in a long straight wire with cross-section having the form of a thin half-ring of radius R . Find the magnetic field at point o situated on the axis of wire. A current I flows in a long straight wire with cross-section having the form of a thin half-ring of radius [...]
A square loop of wire edge length a carries a current i. Compute the magnitude of the magnitude of the magnetic field produced at a point on the axis of the loop at a distance x from the center.
05
Sep
A square loop of wire edge length a carries a current i. Compute the magnitude of the magnitude of the magnetic field produced at a point on the axis of the loop at a distance x from the center. A square loop of wire edge length a carries a current i. Compute the magnitude of [...]
A metal rod moves at a constant velocity in a direction perpendicular to its length. A constant uniform magnetic field exists in space in a direction perpendicular to the rod as well as its velocity. Select the correct statement(s) from the following [1985-2 marks] a)The entire rod is at same electric potential. b)There is an electric field in the rod c)The electric potential is highest at the centre of the rod and increases towards its ends. d)The electric potential is lowest at the centre of the rod and decreases towards its ends
05
Sep
A metal rod moves at a constant velocity in a direction perpendicular to its length. A constant uniform magnetic field exists in space in a direction perpendicular to the rod as well as its velocity. Select the correct statement(s) from the following [1985-2 marks] a)The entire rod is at same electric potential. b)There is an [...]
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A conducting rod of length l slides at constant velocity v on two parallel conducting rails ,
A square loop of side l having resistance R moves with constant velocity v ,
Twelve wires of equal lengths are connected in the form of skelton cube which is moving with a velocity v in the direction of magnetic field B.find the emf in each arm of cube. ,
Two long parallel horizontal rails a ,
In Fig Two long wires W1 and W2, each carrying current I, are placed parallel to each other and parallel to z-axis. The direction of current in W1 is outward and in W2 it is inward. Find B at p and Q.
05
Sep
In Fig Two long wires W1 and W2, each carrying current I, are placed parallel to each other and parallel to z-axis. The direction of current in W1 is outward and in W2 it is inward. Find B at p and Q. are placed parallel to each other and parallel to z-axis. The direction of [...]
In Fig Two long wires W1 and W2, each carrying current I, are placed parallel to each other and parallel to z-axis. The direction of current in W1 is outward and in W2 it is inward.
05
Sep
In Fig Two long wires W1 and W2, each carrying current I, are placed parallel to each other and parallel to z-axis. The direction of current in W1 is outward and in W2 it is inward. are placed parallel to each other and parallel to z-axis. The direction of current in W1 is outward and [...]
Two long parallel horizontal rails a, a distance d aprt and each having a risistance λ per unit length are joing at one end by a resistance R. A perfectly conduction rod MN of mass m is free to slide along the rails without friction (see figure). There is a uniform magnetic field of induction B normal to the plane of the paper and directed into the paper. A variable force F is applied to the rod MN such that, as the rod moves a constant current flows through R. (i) Find the velocity of the rod and the applied force F as function of the distance x of the rod from R. (ii) What fraction of the work done per second by F is converted into heat?
05
Sep
Two long parallel horizontal rails a, a distance d aprt and each having a risistance λ per unit length are joing at one end by a resistance R. A perfectly conduction rod MN of mass m is free to slide along the rails without friction (see figure). There is a uniform magnetic field of induction [...]
Tags:
A conducting rod of length l slides at constant velocity v on two parallel conducting rails ,
A square loop of side l having resistance R moves with constant velocity v ,
Twelve wires of equal lengths are connected in the form of skelton cube which is moving with a velocity v in the direction of magnetic field B.find the emf in each arm of cube. ,
Two long parallel horizontal rails a ,
The current I flows in a circuit shaped like an isosceles trapezium. The ratio of the bases is 2. The length of the smaller base is l. Calculate the magnetic induction at point P located in the plane of the trapezium,
05
Sep
The current I flows in a circuit shaped like an isosceles trapezium. The ratio of the bases is 2. The length of the smaller base is l. Calculate the magnetic induction at point P located in the plane of the trapezium, Find the field at the origin O due to the current i = 2A. [...]