Question Answers
Sahay Sir > Question Answers
A non-conducting sphere of radius R having surface density sigma uniformally on the surface, rotates with an angular velocity omega about a diametrical axis passing through its center. Find the magnetic field
05
Sep
A non-conducting sphere of radius R having surface density sigma uniformally on the surface, rotates with an angular velocity omega about a diametrical axis passing through its center. Find the magnetic field A non-conducting sphere of radius R having surface density sigma uniformally on the surface rotates with an angular velocity omega about a diametrical [...]
figure shows a setup with two long conducting rails with seperation l in a plane perpendicular to a uniform magnetic feild of magnetic induction B. A sliding induction rod MN of mass m is placed on rail as shown.The rails are connected with resistance R and sliding rod is pu;led with constant external force F. If initially the sliding rod is at rest at t = 0,, find the velocity of rod at any time t and the terminal velocity of the rod.
05
Sep
figure shows a setup with two long conducting rails with seperation l in a plane perpendicular to a uniform magnetic feild of magnetic induction B. A sliding induction rod MN of mass m is placed on rail as shown.The rails are connected with resistance R and sliding rod is pu;led with constant external force F. [...]
Tags:
A conducting rod of length l slides at constant velocity v on two parallel conducting rails ,
A square loop of side l having resistance R moves with constant velocity v ,
A straight horizontal conductor of length l ,
and mass_ m slides down on two smooth conducting fixed parallel rails ,
set inclined at an angle theta to the horizontal as shown in figure The top end of the bar are connected with a capacitor of capacitance C. The system is placed in a uniform magnetic field ,
Twelve wires of equal lengths are connected in the form of skelton cube which is moving with a velocity v in the direction of magnetic field B.find the emf in each arm of cube. ,
Two long parallel horizontal rails a ,
Centers of two similar coils P and Q having same number of turns are located at the coordinates (0.4,0) and (0,0.3) such that the plane of coils are perpendicular to X-and Y-axis respectively. The areas of cross section of coils P and Q are in the ration 4:3 Coil P has 16 A current in clockwise direction and coil Q has 93–√A current in anticlockwise direction as seen from the origin. A small compass needle is placed at the origin. Find the deflection in the needle,
05
Sep
Centers of two similar coils P and Q having same number of turns are located at the coordinates (0.4,0) and (0,0.3) such that the plane of coils are perpendicular to X-and Y-axis respectively. The areas of cross section of coils P and Q are in the ration 4:3 Coil P has 16 A current in [...]
A thin insulated wire forms a plane spiral of N=100 tight turns carrying a current I=8mA.The radii of inside and outside turns (figure) are equal to a=5cm and b=10cm.
05
Sep
A thin insulated wire forms a plane spiral of N=100 tight turns carrying a current I=8mA.The radii of inside and outside turns (figure) are equal to a=5cm and b=10cm. A thin insulated wire forms a plane spiral of N=100 tight turns carrying a current I=8mA.The radii of inside and outside turns (figure) are equal to [...]
What is the magnitude of magnetic field at the center O of loop of radius R made of uniform wire when a current of I enters in the loop and taken out of it by two long wires as shown in the figure?
05
Sep
What is the magnitude of magnetic field at the center O of loop of radius R made of uniform wire when a current of I enters in the loop and taken out of it by two long wires as shown in the figure? What is the magnitude of magnetic field at the center O of [...]
A wire ring of radius R is fixed in a horizontal plane. The wire of the ring has a resistance of λΩm–1. There is a uniform vertical magnetic field B in entire space. A perfectly conducting rod (l) is kept along the diameter of the ring. The rod is made to move with a constant acceleration a in a direction perpendicular to its own length. Find the current through the rod at the instant it has traveled through a distance x=R/2.
05
Sep
A wire ring of radius R is fixed in a horizontal plane. The wire of the ring has a resistance of λΩm–1. There is a uniform vertical magnetic field B in entire space. A perfectly conducting rod (l) is kept along the diameter of the ring. The rod is made to move with a constant [...]
Tags:
A conducting rod of length l slides at constant velocity v on two parallel conducting rails ,
A square loop of side l having resistance R moves with constant velocity v ,
A straight horizontal conductor of length l ,
and mass_ m slides down on two smooth conducting fixed parallel rails ,
set inclined at an angle theta to the horizontal as shown in figure The top end of the bar are connected with a capacitor of capacitance C. The system is placed in a uniform magnetic field ,
Twelve wires of equal lengths are connected in the form of skelton cube which is moving with a velocity v in the direction of magnetic field B.find the emf in each arm of cube. ,
Two long parallel horizontal rails a ,
A battery is connected between two points A and B on the circumference of a uniform conducting ring of radius r and resistance R as shown in Fig. One of the arcs AB of the ring subtends angle θ at the centre. Show that that the magnetic field at the centre of the coil is zero and independent θ.
05
Sep
A battery is connected between two points A and B on the circumference of a uniform conducting ring of radius r and resistance R as shown in Fig. One of the arcs AB of the ring subtends angle θ at the centre. Show that that the magnetic field at the centre of the coil is [...]
Shown in figure is a conductor carrying current I. Find the magnetic field intensity at point O.
05
Sep
Shown in figure is a conductor carrying current I. Find the magnetic field intensity at point O. Shown in figure is a conductor carrying current I. Find the magnetic field intensity at point O. September 5, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
An infinitely long conductor as shown in figure, carrying a current I with a semicircular loop on X-Y plane and two straight parts, one parallel to X-axis and another coinciding with Z-axis. What is the magnetic field induction at the centre C of the semi-circular loop.
05
Sep
An infinitely long conductor as shown in figure, carrying a current I with a semicircular loop on X-Y plane and two straight parts, one parallel to X-axis and another coinciding with Z-axis. What is the magnetic field induction at the centre C of the semi-circular loop. An infinitely long conductor as shown in figure carrying [...]
A straight horizontal conductor of length l, and mass_ m slides down on two smooth conducting fixed parallel rails, set inclined at an angle theta to the horizontal as shown in figure The top end of the bar are connected with a capacitor of capacitance C. The system is placed in a uniform magnetic field, in the direction perpendicular to the inclined plane formed by the rails as shown in figure. If the resistance of the bars and the sliding conductor are negligible calculate the acceleration of sliding conductor as a function of time if it is released from rest at t= 0
05
Sep
A straight horizontal conductor of length l, and mass_ m slides down on two smooth conducting fixed parallel rails, set inclined at an angle theta to the horizontal as shown in figure The top end of the bar are connected with a capacitor of capacitance C. The system is placed in a uniform magnetic field, [...]
Tags:
A conducting rod of length l slides at constant velocity v on two parallel conducting rails ,
A square loop of side l having resistance R moves with constant velocity v ,
A straight horizontal conductor of length l ,
and mass_ m slides down on two smooth conducting fixed parallel rails ,
set inclined at an angle theta to the horizontal as shown in figure The top end of the bar are connected with a capacitor of capacitance C. The system is placed in a uniform magnetic field ,
Twelve wires of equal lengths are connected in the form of skelton cube which is moving with a velocity v in the direction of magnetic field B.find the emf in each arm of cube. ,
Two long parallel horizontal rails a ,