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A block of mass m slides down an inclined plane of inclination θ with uniform speed. The coefficient of friction between the block and the plane is μ. The contact force between the block and the plane is
19
Oct
A block of mass m slides down an inclined plane of inclination θ with uniform speed. The coefficient of friction between the block and the plane is μ. The contact force between the block and the plane is Assuming all the surfaces to be frictionless acceleration of the block c shown in the figure is [...]
An elevator accelerates upward at a constant rate. A uniform string of length L and mass m supports a small block of mass M that hangs from the celling of the elevator. The tension at distance l from the celling is T. The acceleration of the elevator is
19
Oct
An elevator accelerates upward at a constant rate. A uniform string of length L and mass m supports a small block of mass M that hangs from the celling of the elevator. The tension at distance l from the celling is T. The acceleration of the elevator is Assuming all the surfaces to be frictionless [...]
In the given figure the wedge is fixed, pulley is frictionless and string is light. Surface AB is frictionless whereas AC is rough. If the block of mass 3m. Slides down. With constant velocity, then the coefficient of friction between surface AC and the block is
19
Oct
In the given figure the wedge is fixed, pulley is frictionless and string is light. Surface AB is frictionless whereas AC is rough. If the block of mass 3m. Slides down. With constant velocity, then the coefficient of friction between surface AC and the block is In the given figure the wedge is fixed pulley [...]
Three blocks are placed at rest on a smooth inclined plane with force acting on m1 parallel to the inclined plane. Find the contact force between m2 and m3
19
Oct
Three blocks are placed at rest on a smooth inclined plane with force acting on m1 parallel to the inclined plane. Find the contact force between m2 and m3 Three blocks are placed at rest on a smooth inclined plane with force acting on m1 parallel to the inclined plane. Find the contact force between [...]
A particle having charge q is placed at a point P outside the cylindrical magnetic field region, where uniform magnetic field is perpendicular to the plane of the figure in a cylindrical region of radius R. The magnetic field is increasing at a constant rate of bita T/s . If the particle is slowely moved to infinity, calculate work done by the external agent on th particle in case
19
Oct
A particle having charge q is placed at a point P outside the cylindrical magnetic field region, where uniform magnetic field is perpendicular to the plane of the figure in a cylindrical region of radius R. The magnetic field is increasing at a constant rate of bita T/s . If the particle is slowely moved [...]
A uniform magnetic field present in cylindrical region of radius R centred at O as shown in the figure. The magnetic field is changing at a rate dB/dt = bita. There present a conducting loop ABCD in the polane of the fig with its arms BC and DA along two radial direction from O having an angle theta between them. AB and CD are two circular arcs of radius b and a respectively centred at O. Find
19
Oct
A uniform magnetic field present in cylindrical region of radius R centred at O as shown in the figure. The magnetic field is changing at a rate dB/dt = bita. There present a conducting loop ABCD in the polane of the fig with its arms BC and DA along two radial direction from O having [...]
In a cylindrical region of radius R = 2.5 cm the magnetic field changes with time according to, B = ( 2.00 t^3 – 4.00 t^2 + 0.8 ) T and (a) Calculate the force on an electron located at P2 at t=2.00s (b) What are the magnitude and direction of the electric field at P1 when t = 3.00 s and r1 = 0.02 m.
19
Oct
In a cylindrical region of radius R = 2.5 cm the magnetic field changes with time according to, B = ( 2.00 t^3 – 4.00 t^2 + 0.8 ) T and (a) Calculate the force on an electron located at P2 at t=2.00s (b) What are the magnitude and direction of the electric field at [...]
Figure shows five lettered regions in which a uniform magnetic field extends directly either out of the page (as in region a) or into he page. The field is increasing in magnitude at the same steady rate in all five regions, the regions are identical in area. Also shows are four numbered paths along which ∮E .dl has the magnitudes given below in terms of a quantity mag. Determine whether the magnetic fields in regions b through e are directed into ot out of the page.
19
Oct
Figure shows five lettered regions in which a uniform magnetic field extends directly either out of the page (as in region a) or into he page. The field is increasing in magnitude at the same steady rate in all five regions, the regions are identical in area. Also shows are four numbered paths along which [...]
Figure shows two circular regions R1 and R2 with redii r1 = 21.2 cm and r2 = 32.3 cm, respectively. In R1 there is a uniform magetic field B1=48.6mT into the page and in R2 there is a uniform magnetic field B2=77.2mT out of the page (ignore any fringing of these fields).Both fields are decreasing at the rate 8.50 mT/s. Calculate the intergal ∮E .dl for each of the three identical paths.
19
Oct
Figure shows two circular regions R1 and R2 with redii r1 = 21.2 cm and r2 = 32.3 cm, respectively. In R1 there is a uniform magetic field B1=48.6mT into the page and in R2 there is a uniform magnetic field B2=77.2mT out of the page (ignore any fringing of these fields).Both fields are decreasing [...]
The magnetic field B at all points within a circular region of the radius R is uniform space and directed into the plane of the page in figure. If the magnetic field is increasing at a rate dB/dt what are the magnitude and direction of the force on as stationary positive point charge q located at points a,b,c? (Point a is a distance r above the centre of the region, point b is a distance r to the right to the centre and point c is at the centre of the region).
19
Oct
The magnetic field B at all points within a circular region of the radius R is uniform space and directed into the plane of the page in figure. If the magnetic field is increasing at a rate dB/dt what are the magnitude and direction of the force on as stationary positive point charge q located [...]