Physics-
General
Easy
Question
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
The correct answer is:
Related Questions to study
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 
are facing each other as shown in figure. The relative speed between the two points and is 
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
chemistry-
The preparation of SO3(g)by reaction 
is an exothermic reaction. If the preparation follows the following temperature-pressure relationship for its % yield, then for temperatures T1,T2 and T3 . The correct option is
The preparation of SO3(g)by reaction is an exothermic reaction. If the preparation follows the following temperature-pressure relationship for its % yield, then for temperatures T1,T2 and T3 . The correct option is
chemistry-General
chemistry-
Lucas reagent is a mixture of:
Lucas reagent is a mixture of:
chemistry-General
physics-
If a stone 
to hit at a point which is at a distance 
away and at a height 
above the point from where the stone starts, then what is the value of initial sped 
, if the stone is launched at an angle ?
If a stone to hit at a point which is at a distance away and at a height above the point from where the stone starts, then what is the value of initial sped , if the stone is launched at an angle ?
physics-General
biology
Match the following and mark the correct options
Match the following and mark the correct options
biologyGeneral
Physics-
A point mass 
is suspended from a light thread of length 
fixed at
, is whirled in a horizontal circle at constant speed as shown. From your point of view, stationary with respect to the mass, the forces on the mass are
A point mass is suspended from a light thread of length fixed at, is whirled in a horizontal circle at constant speed as shown. From your point of view, stationary with respect to the mass, the forces on the mass are
Physics-General
physics-
The frequency of a FM transmitter without signal input is called
The frequency of a FM transmitter without signal input is called
physics-General
physics-
In a communication system, noise is most likely to affect the signal
In a communication system, noise is most likely to affect the signal
physics-General
physics-
In the satellite communication, the uplinking frequency range is
In the satellite communication, the uplinking frequency range is
physics-General
