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An infinitely long straight conduction is bent into the shape as shown in the figure . It carries a current of I ampere and the radius of the circular loop is r metre. Then the magnetic induction at its centre will be
09
Sep
An infinitely long straight conduction is bent into the shape as shown in the figure . It carries a current of I ampere and the radius of the circular loop is r metre. Then the magnetic induction at its centre will be Find the magnetic field at o. September 9, 2020 Category: Uncategorised (JEE Advanced [...]
The image of a small electric bulb fixed on the wall of a room is to be obtained on the opposite wall 3 m away by means of a large convex lens. What is the maximum possible focal length of the lens required for the purpose?
09
Sep
The image of a small electric bulb fixed on the wall of a room is to be obtained on the opposite wall 3 m away by means of a large convex lens. What is the maximum possible focal length of the lens required for the purpose? calculate the object and image distance. The image obtained [...]
An object of size 3.0 cm is placed 14 cm in front of a concave lens of focal length 21 cm. Describe the image produced by the lens. What happens if the object is moved farther from the lens?
09
Sep
An object of size 3.0 cm is placed 14 cm in front of a concave lens of focal length 21 cm. Describe the image produced by the lens. What happens if the object is moved farther from the lens? An object of size 3.0 cm is placed 14 cm in front of a concave lens [...]
A beam of light converges to a point P. A lens is placed in the path of the convergent beam 12 cm from P. At what point does the beam converge if the lens is (a) a convex lens of focal length 20 cm
09
Sep
A beam of light converges to a point P. A lens is placed in the path of the convergent beam 12 cm from P. At what point does the beam converge if the lens is (a) a convex lens of focal length 20 cm A beam of light converges to a point P. A lens [...]
An object is placed at a distance of 1.5 m from a screen and a convex lens is interposed between them. The magnification produced is 4. What is the focal length of the lens?
09
Sep
An object is placed at a distance of 1.5 m from a screen and a convex lens is interposed between them. The magnification produced is 4. What is the focal length of the lens? An object is placed at a distance of 1.5 m from a screen and a convex lens is interposed between them. [...]
Find the magnetic field at o.
09
Sep
Find the magnetic field at o. Find the magnetic field at o. September 9, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
In the figure shown there are two semicircles of radii r1 and r2 in which a current i is flowing. The magnetic induction at the centre O will be
09
Sep
In the figure shown there are two semicircles of radii r1 and r2 in which a current i is flowing. The magnetic induction at the centre O will be In the figure shown there are two semicircles of radii r1 and r2 in which a current i is flowing. The magnetic induction at the centre [...]
A current i ampere flows in a circular arc of wire whose radius is R, which subtend an angle 3 pie/2 radian at its centre. The magnetic induction B at the at the centre is
09
Sep
A current i ampere flows in a circular arc of wire whose radius is R, which subtend an angle 3 pie/2 radian at its centre. The magnetic induction B at the at the centre is A current i ampere flows in a circular arc of wire whose radius is R which subtend an angle 3 [...]
The image obtained with a convex lens is erect arid. Its length is four times the length of the object. If the focal length of the lens is 20 cm, calculate the object and image distance.
09
Sep
The image obtained with a convex lens is erect arid. Its length is four times the length of the object. If the focal length of the lens is 20 cm, calculate the object and image distance. calculate the object and image distance. The image obtained with a convex lens is erect arid. Its length is [...]
Two similar coils are kept mutually perpendicular such that their centres coincide. At the centre, find the ratio of the magnetic field due to one coil and the resultant magnetic field by both coils, if the same current is flown
09
Sep
Two similar coils are kept mutually perpendicular such that their centres coincide. At the centre, find the ratio of the magnetic field due to one coil and the resultant magnetic field by both coils, if the same current is flown find the ratio of the magnetic field due to one coil and the resultant magnetic [...]