Cengage JEE Mains Physics by B.M Sharma
A system consists of a thin charged wire ring of radius r and a very long uniformly charged wire oriented along the axis of the ring, with one of its ends coinciding with the center of the ring. The total charge on the ring is q, and the linear charge density on the straight wire is λ. The interaction force between the ring and the wire is :
06
Dec
A system consists of a thin charged wire ring of radius r and a very long uniformly charged wire oriented along the axis of the ring, with one of its ends coinciding with the center of the ring. The total charge on the ring is q, and the linear charge density on the straight wire [...]
Tags:
A system consists of a thin charged wire ring of radius r and a very long uniformly charged wire oriented along the axis of the ring ,
and the linear charge density on the straight wire is λ. The interaction force between the ring and the wire is : ,
with one of its ends coinciding with the center of the ring. The total charge on the ring is q ,
A thin glass rod is bent into a semi-circle of radius R . A charge +Q is uniformly distributed along the upper half and a charge −Q is uniformly distributed along the lower half. The electric field E at P, the centre of the semi-circle is
06
Dec
A thin glass rod is bent into a semi-circle of radius R . A charge +Q is uniformly distributed along the upper half and a charge −Q is uniformly distributed along the lower half. The electric field E at P, the centre of the semi-circle is A ring of charge with radius 0.5m has 0.002 [...]
Four identical charges Q are fixed at the four corners of a square of side a. The electric field at a point P located symmetrically at a distance a/2–√ from the center of the square is
06
Dec
Four identical charges Q are fixed at the four corners of a square of side a. The electric field at a point P located symmetrically at a distance a/2–√ from the center of the square is Four identical charges Q are fixed at the four corners of a square of side a. The electric field [...]
A positive point charge 50μC is located in the plane xy at the point with radius vector r0=2i+3j, the electric field vector E and its magnitude at a point with radius vector r=8i−5j. where r0 and r are expressed in metres.
06
Dec
A positive point charge 50μC is located in the plane xy at the point with radius vector r0=2i+3j, the electric field vector E and its magnitude at a point with radius vector r=8i−5j. where r0 and r are expressed in metres. A positive point charge 50μC is located in the plane xy at the point [...]
A point charge q=−8.0nC is located at the origin. The electric field (in NC^−1 ) vector at the point x=1.2m,y=−1.6m, as shown in figure, is :
06
Dec
A point charge q=−8.0nC is located at the origin. The electric field (in NC^−1 ) vector at the point x=1.2m,y=−1.6m, as shown in figure, is : A point charge q=−8.0nC is located at the origin. The electric field (in NC^−1 ) vector at the point x=1.2m as shown in figure is y=−1.6m December 6, 2020 [...]
Five point charges, each of value +q , are placed on five vertices of a regular hexagon of side L meters. The magnitude of the force on the point charge of value -q coul, placed at the centre of the hexagon is
06
Dec
Five point charges, each of value +q , are placed on five vertices of a regular hexagon of side L meters. The magnitude of the force on the point charge of value -q coul, placed at the centre of the hexagon is are placed on five vertices of a regular hexagon of side L meters. [...]
It is required to hold equal charges, q in equilibrium at the corners of a square. What charge when placed at the centre of the square will do this?
06
Dec
It is required to hold equal charges, q in equilibrium at the corners of a square. What charge when placed at the centre of the square will do this? It is required to hold equal charges q in equilibrium at the corners of a square. What charge when placed at the centre of the square [...]
Three identical spheres, each having a charge q and radius R. are kept in such a way that each touches the other two. The magnitude of the electric force on any sphere due to the other two is
06
Dec
Three identical spheres, each having a charge q and radius R. are kept in such a way that each touches the other two. The magnitude of the electric force on any sphere due to the other two is each having a charge q and radius R. are kept in such a way that each touches [...]
In fig two equal positive point charge q1 = q2 = 2.0μC. Interact with a third point charge Q=4.0μC. The magnitude as well as direction of the net force on Q is
06
Dec
In fig two equal positive point charge q1 = q2 = 2.0μC. Interact with a third point charge Q=4.0μC. The magnitude as well as direction of the net force on Q is In fig two equal positive point charge q1 = q2 = 2.0μC. Interact with a third point charge Q=4.0μC. The magnitude as well [...]
A block of mass m containing a net negative charge -q is placed on a frictionless horizontal table and is connected to a wall through an unstretched spring of spring constant k as shown. If horizontal electric field E parallel to the spring is switched on, then the maximum compression of the spring is
06
Dec
A block of mass m containing a net negative charge -q is placed on a frictionless horizontal table and is connected to a wall through an unstretched spring of spring constant k as shown. If horizontal electric field E parallel to the spring is switched on, then the maximum compression of the spring is A [...]