Physics-
General
Easy
Question
A wire is bent in the form of a circular arc with a straight portion AB If the current in the wire is i, then the magnetic induction at O is
The correct answer is:
Related Questions to study
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The magnetic induction at O due to a current in conductor shaped as shown in fig is
The magnetic induction at O due to a current in conductor shaped as shown in fig is
physics-General
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The figure shows a unifrom conducting structure which carries current i with each small square has side a The structure is kept in a uniform magnetic field B Then the magnetic force on the structure will be
The figure shows a unifrom conducting structure which carries current i with each small square has side a The structure is kept in a uniform magnetic field B Then the magnetic force on the structure will be
physics-General
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Two long parallel conductors carry currents 
both are directed into the plane of paper The magnitude of resultant magnetic field at point ‘P; is
Two long parallel conductors carry currents both are directed into the plane of paper The magnitude of resultant magnetic field at point ‘P; is
physics-General
chemistry-
What amount of bromine will be required to convert 2 g of phenol into 2, 4, 6-tribromo phenol?
What amount of bromine will be required to convert 2 g of phenol into 2, 4, 6-tribromo phenol?
chemistry-General
physics-
A wire bent in the form a right angled triangle PQR, carries a current 1 A It is placed in a region of a uniform magnetic field B= 0.2T If PR = 1m, the net force on the wire is
A wire bent in the form a right angled triangle PQR, carries a current 1 A It is placed in a region of a uniform magnetic field B= 0.2T If PR = 1m, the net force on the wire is
physics-General
physics-
A current i A = 2 be flowing in each part of a wire frame as shown in fig The frame is a combination of two equilateral triangles ACD and CDE of side 1m It is placed in uniform magnetic field B=4T acting perpendicular to the plane of frame The magnitude of magnetic force acting on the frame is
A current i A = 2 be flowing in each part of a wire frame as shown in fig The frame is a combination of two equilateral triangles ACD and CDE of side 1m It is placed in uniform magnetic field B=4T acting perpendicular to the plane of frame The magnitude of magnetic force acting on the frame is
physics-General
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Wires 1 and 2 carrying currents i1 and i2 respectively are inclined at an angle q to each other What is the force on a small element dl of wire 2 at a distance of r from wire 1 (as shown in figure) due to the magnetic field of wire 1
Wires 1 and 2 carrying currents i1 and i2 respectively are inclined at an angle q to each other What is the force on a small element dl of wire 2 at a distance of r from wire 1 (as shown in figure) due to the magnetic field of wire 1
physics-General
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PQ is a uniform rod of length l and mass m carrying current i and is suspended in uniform magnetic field of induction B ur acting inward as shown in figure The tension in each string is
PQ is a uniform rod of length l and mass m carrying current i and is suspended in uniform magnetic field of induction B ur acting inward as shown in figure The tension in each string is
physics-General
physics-
Two wires AO and OC carry currents i as shown in figure One end of both the wires extends to infinity 
, the magnitude of magnetic field at a point P on the bisector of the two wires at a distance r from O is
Two wires AO and OC carry currents i as shown in figure One end of both the wires extends to infinity , the magnitude of magnetic field at a point P on the bisector of the two wires at a distance r from O is
physics-General
Physics-
Two identical discs of same radius 
are rotating about their axes in opposite directions with the same constant angular speed 
. The discs are in the same horizontal plane. At time 
, the points 
and 
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as function of times best represented by
Two identical discs of same radius are rotating about their axes in opposite directions with the same constant angular speed . The discs are in the same horizontal plane. At time , the points and are facing each other as shown in figure. The relative speed between the two points and is as function of times best represented by
Physics-General
physics-
Consider the given velocity-time graph It represents the motion of
Consider the given velocity-time graph It represents the motion of
physics-General
chemistry-
2-methoxy butane is obtained by reacting diazomethane with
2-methoxy butane is obtained by reacting diazomethane with
chemistry-General
physics-
The figure shows a circular path of a moving particle. If the velocity of the particle at same instant is 
, through which quadrant is the particle moving when clockwise and anti-clockwise respectively
The figure shows a circular path of a moving particle. If the velocity of the particle at same instant is , through which quadrant is the particle moving when clockwise and anti-clockwise respectively
physics-General
chemistry-
The dehydration of butane-1-ol gives
The dehydration of butane-1-ol gives
chemistry-General
chemistry-
Which of the following reaction is/are feasible?
Which of the following reaction is/are feasible?
chemistry-General
