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The centre of mass of a system of three particles of masses 1 g, 2 g and 3 g is taken as the origin of a coordinate system. The position vector of a fourth particle of mass 4 g such that the centre of mass of the four particle system lies at the point (1,2,3) is α(iˆ+2jˆ+3kˆ), where α is a constant. The value of α is
29
Oct
The centre of mass of a system of three particles of masses 1 g, 2 g and 3 g is taken as the origin of a coordinate system. The position vector of a fourth particle of mass 4 g such that the centre of mass of the four particle system lies at the point (1,2,3) [...]
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2 ,
2 g and 3 g is taken as the origin of a coordinate system. The position vector of a fourth particle of mass 4 g such that the centre of mass of the four particle system lies at the point (1 ,
3) is α(iˆ+2jˆ+3kˆ) ,
The centre of mass of a system of three particles of masses 1 g ,
where α is a constant. The value of α is ,
Five balls numbered 1, 2, 3 ,4 ,and 5 are suspended using separated threads. The balls (1,2),(2,4) and (4,1) show electrostatic attraction while balls (2,3) and (4,5) show repulsion. Therefore, ball 1 must be
29
Oct
Five balls numbered 1, 2, 3 ,4 ,and 5 are suspended using separated threads. The balls (1,2),(2,4) and (4,1) show electrostatic attraction while balls (2,3) and (4,5) show repulsion. Therefore, ball 1 must be 1) show electrostatic attraction while balls (2 2 3) and (4 3% 4 4 ) and (4 5) show repulsion. Therefore [...]
A force of F→=2xiˆ+2jˆ+3z^2kˆN is acting on a particle. Find the work done by this force in displacing the body from (1,2,3)m to (3,6,1)m.
28
Oct
A force of F→=2xiˆ+2jˆ+3z^2kˆN is acting on a particle. Find the work done by this force in displacing the body from (1,2,3)m to (3,6,1)m. 1)m. 2 3)m to (3 6 A force of F→=2xiˆ+2jˆ+3z^2kˆN is acting on a particle. Find the work done by this force in displacing the body from (1 October 28, 2020 [...]
A force F = 3i – 2j 4k displace a body from a point A(8, -2, -3) to the point B(-2, 0, 6). The work done is
27
Oct
A force F = 3i – 2j 4k displace a body from a point A(8, -2, -3) to the point B(-2, 0, 6). The work done is -3) to the point B(-2 2 6). The work done is A force F = 3i - 2j 4k displace a body from a point A(8 October 27, [...]
A long , vertical wire carrying a current of i is bent into four [parts 1, 2, 3 and 4 as shown in the figure. Find the induction at O.
16
Oct
A long , vertical wire carrying a current of i is bent into four [parts 1, 2, 3 and 4 as shown in the figure. Find the induction at O. 2 3 and 4 as shown in the figure. Find the induction at O. A long vertical wire carrying a current of i is bent [...]
Example 5 : Given the point (1, 2), find the equation of a line on which it lies. How many such equations are there?
15
Oct
Example 5 : Given the point (1, 2), find the equation of a line on which it lies. How many such equations are there? 2 Example 5 : Given the point (1 find the equation of a line on which it lies. How many such equations are there? October 15, 2020 Category: Chapter 4 - [...]
Example 3 : Locate the points (5,0),(0,5),(2,5),(5,2),(-3,5),(-3,-5),(5,-3) and (6,1) in the Cartesian plane.
15
Oct
Example 3 : Locate the points (5,0),(0,5),(2,5),(5,2),(-3,5),(-3,-5),(5,-3) and (6,1) in the Cartesian plane. -3) and (6 0 ) 1) in the Cartesian plane. 2 3% 5 Example 3 : Locate the points (5 October 15, 2020 Category: Chapter 3 - Coordinate Geometry , Maths , NCERT Class 9 ,
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-3) and (6 ,
0 ) ,
1) in the Cartesian plane. ,
2 ,
3% ,
5 ,
Example 3 : Locate the points (5 ,
In the previous problrm , thre maximum range of movement of the of the centre of the part of the circle from line AD in which charged particle of charge Q moves with a velocity v when theta is positive to when theta is negative is given by
14
Oct
In the previous problrm , thre maximum range of movement of the of the centre of the part of the circle from line AD in which charged particle of charge Q moves with a velocity v when theta is positive to when theta is negative is given by 0) is placed in x−y plane as [...]
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0) is placed in x−y plane as shown in figure. The force on semicircular wire will be ,
2 ,
A uniform magnetic field B =(3 i ^ +4 j ^ + k ^ ) exists in region of space. A semicircular wire of radius 1 m carrying current 1 A having its centre at (2 ,
In the previous problrm ,
Two rectangular plates A and B placed at a distance 2a apart ,
To the right of line PQ is a uniform magnetic field B. B1A is the line of incidence of a charged particle, which comes out of the field along DE ; CA and DF are the normals at A and D. B1AC = theta . Angle measured from CA in clockwise direction is taken as positive . what will be the value of theta so that angle subtented by the part of the circle ( along which charged particles moves in the field ) at its centre and facing the circle is less than pie?
14
Oct
To the right of line PQ is a uniform magnetic field B. B1A is the line of incidence of a charged particle, which comes out of the field along DE ; CA and DF are the normals at A and D. B1AC = theta . Angle measured from CA in clockwise direction is taken as [...]
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0) is placed in x−y plane as shown in figure. The force on semicircular wire will be ,
2 ,
A uniform magnetic field B =(3 i ^ +4 j ^ + k ^ ) exists in region of space. A semicircular wire of radius 1 m carrying current 1 A having its centre at (2 ,
To the right of line PQ is a uniform magnetic field B. B1A is the line of incidence of a charged particle ,
Two rectangular plates A and B placed at a distance 2a apart ,
Two rectangular plates A and B placed at a distance 2a apart, are connected to a battery to produce an electric field. There are insulators between plantes C and other two plates. A magnetic field exists along z-axis. A charged particle of mass m and charge q passes through a hole at the middle of the plate A with velocity v and strikes at Q which is the middle of the bottom edge of plate B after passing through a hole inplate C. If E= mv2/qa, what will be the speed of the particle at Q?
14
Oct
Two rectangular plates A and B placed at a distance 2a apart, are connected to a battery to produce an electric field. There are insulators between plantes C and other two plates. A magnetic field exists along z-axis. A charged particle of mass m and charge q passes through a hole at the middle of [...]
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0) is placed in x−y plane as shown in figure. The force on semicircular wire will be ,
2 ,
A uniform magnetic field B =(3 i ^ +4 j ^ + k ^ ) exists in region of space. A semicircular wire of radius 1 m carrying current 1 A having its centre at (2 ,
Two rectangular plates A and B placed at a distance 2a apart ,