Physics-
General
Easy
Question
A particle having charge q enters a region of uniform magnetic field 
(directed inwards) and is deflected a distance x after travelling a distance y. The magnitude of the momentum of the particle is
The correct answer is:
Related Questions to study
physics-
Net magnetic field at the centre of the circle O due to a current carrying loop as shown in figure is 
Net magnetic field at the centre of the circle O due to a current carrying loop as shown in figure is
physics-General
physics-
A nonconducting disc having uniform positive charge Q, is rotating about its axis with uniform angular velocity 
. The magnetic field at the centre of the disc is–
A nonconducting disc having uniform positive charge Q, is rotating about its axis with uniform angular velocity . The magnetic field at the centre of the disc is–
physics-General
physics-
Two insulated rings, one of slightly smaller diameter than the other, are suspended along their common diameter as shown. Initially the planes of the rings are mutually perpendicular. When a steady current is set up in each of them.
Two insulated rings, one of slightly smaller diameter than the other, are suspended along their common diameter as shown. Initially the planes of the rings are mutually perpendicular. When a steady current is set up in each of them.
physics-General
chemistry-
In the above reaction X is
In the above reaction X is
chemistry-General
chemistry-
In the reaction : 
M and R Respectively
In the reaction : M and R Respectively
chemistry-General
physics-
A long straight metal rod has a very long hole of radius 'a' drilled parallel to the rod axis as shown in the figure. If the rod carries a current 'i' find the value of magnetic induction on the axis of the hole, where OC=c
A long straight metal rod has a very long hole of radius 'a' drilled parallel to the rod axis as shown in the figure. If the rod carries a current 'i' find the value of magnetic induction on the axis of the hole, where OC=c
physics-General
physics-
Two large conducting current planes perpendicular to x–axis are placed at (d, 0) and (2d, 0) as shown in figure. Current per unit width in both the planes is same and current is flowing in the outward direction. The variation of magnetic induction as function of 'x' 
is best represented by–
Two large conducting current planes perpendicular to x–axis are placed at (d, 0) and (2d, 0) as shown in figure. Current per unit width in both the planes is same and current is flowing in the outward direction. The variation of magnetic induction as function of 'x' is best represented by–
physics-General
physics-
A long straight wire, carrying current I, is bent at its midpoint to form an angle of 
. Magnetic field at point P, distance R from point of bending is equal to
A long straight wire, carrying current I, is bent at its midpoint to form an angle of . Magnetic field at point P, distance R from point of bending is equal to
physics-General
chemistry-
chemistry-General
chemistry-
Which among the following is aromatic?
Which among the following is aromatic?
chemistry-General
chemistry-
What will be the product obtained as a result of the following reaction and why?
What will be the product obtained as a result of the following reaction and why?
chemistry-General
physics-
A spring of force constant 800 N/m has an extension of 5 cm The work done in extending it from 5 cm to 15 cm is -
A spring of force constant 800 N/m has an extension of 5 cm The work done in extending it from 5 cm to 15 cm is -
physics-General
maths-
The length of a rectangle is 16 cm and each of its diagonal measures 20 cm. The breadth is:
The length of a rectangle is 16 cm and each of its diagonal measures 20 cm. The breadth is:
maths-General
physics-
Block ‘A‘ is hanging from a vertical spring and is at rest. Block ‘B‘ strikes the block ‘A’ with velocity ‘v‘ and sticks to it. Then the value of ‘ v ‘ for which the spring just attains natural length is :
Block ‘A‘ is hanging from a vertical spring and is at rest. Block ‘B‘ strikes the block ‘A’ with velocity ‘v‘ and sticks to it. Then the value of ‘ v ‘ for which the spring just attains natural length is :
physics-General
physics-
A particle is moved from (0, 0) to (a, a) under a force 
from two paths. Path 1 is OP and Path 2 is OQP. Let 
and 
be the work done by this force in these two paths. Then
A particle is moved from (0, 0) to (a, a) under a force from two paths. Path 1 is OP and Path 2 is OQP. Let and be the work done by this force in these two paths. Then
physics-General
