Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Two identical wires A and B have the same length l and carry the same current I. Wire A is bent into a circle of radius R and wire B is bent to form a square of side a. If B1 and B2 are the values of magnetic induction at the centre of the circle and the centre of the square, respectively, then the ratio B1/B2 is
17
Oct
Two identical wires A and B have the same length l and carry the same current I. Wire A is bent into a circle of radius R and wire B is bent to form a square of side a. If B1 and B2 are the values of magnetic induction at the centre of the circle [...]
A coaxial cable consists of a thin inner conductor fixed along the axis of a hollow outer conductor. The two conductor carry equal currents in opposite directions. Let B1andB2 be the magnetic fields in the region between the conductors and outside the conductor, respectively. Then,
17
Oct
A coaxial cable consists of a thin inner conductor fixed along the axis of a hollow outer conductor. The two conductor carry equal currents in opposite directions. Let B1andB2 be the magnetic fields in the region between the conductors and outside the conductor, respectively. Then, Figure shows three cases: in all cases the circular part [...]
Two concentric coils each of radius equal to 2 π cm are placed at right angles to each other 3 ampere and 4 ampere are the currents flowing in each coil respectively. The magnetic induction in weber/m^2 at the centre of the coils will be (μ0 = 4π × 10^−7 Wb/A.m)
17
Oct
Two concentric coils each of radius equal to 2 π cm are placed at right angles to each other 3 ampere and 4 ampere are the currents flowing in each coil respectively. The magnetic induction in weber/m^2 at the centre of the coils will be (μ0 = 4π × 10^−7 Wb/A.m) Figure shows three cases: [...]
An infinitely long conductor PQR is bent to form a right angle as shown in figure. A current I flows through PQR. The magnetic field due to this current carrying conductor a the point M is B 1 . Now, another infinitely long straight conductor QS, is connected at Q so that the current is 2 1 I is QR as well as in QS, the current in PQ remaining unchanged. The magnetic field at M is now B 2 . the ratio B 1 /B 2 is given by
17
Oct
An infinitely long conductor PQR is bent to form a right angle as shown in figure. A current I flows through PQR. The magnetic field due to this current carrying conductor a the point M is B 1 . Now, another infinitely long straight conductor QS, is connected at Q so that the current [...]
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An infinitely long conductor PQR is bent to form a right angle as shown in figure. A current I flows through PQR. The magnetic field due to this current carrying conductor a the point M is B 1 . Now ,
another infinitely long straight conductor QS ,
is connected at Q so that the current is 2 1 I is QR as well as in QS ,
the current in PQ remaining unchanged. The magnetic field at M is now B 2 . the ratio B 1 /B 2 is given by ,
The field due to a wire of n turns and radius r which carries a current I is measured on the axis of the coil at a small distance h from the center of the coil. This is smaller than the field at the centre by the fraction:
17
Oct
The field due to a wire of n turns and radius r which carries a current I is measured on the axis of the coil at a small distance h from the center of the coil. This is smaller than the field at the centre by the fraction: Figure shows three cases: in all cases [...]
A wire is bent in the form of a circular arc with a straight portion AB. Magnetic induction at O when current I flowing in the wire, is
17
Oct
A wire is bent in the form of a circular arc with a straight portion AB. Magnetic induction at O when current I flowing in the wire, is A wire is bent in the form of a circular arc with a straight portion AB. Magnetic induction at O when current I flowing in the wire [...]
Figure shows three cases: in all cases the circular part has radius r and straight one are infinetly long. For the same current the ratio of field B at centre P in the three cases B1 ; B2 : B3 is
17
Oct
Figure shows three cases: in all cases the circular part has radius r and straight one are infinetly long. For the same current the ratio of field B at centre P in the three cases B1 ; B2 : B3 is Figure shows three cases: in all cases the circular part has radius r and [...]
A current I flows through a thin wire shaped as regular polygon of n sides which can be inscribed in a circle of radius R . The magnetic field induction at the centre of polygon due to one of the polygon is
17
Oct
A current I flows through a thin wire shaped as regular polygon of n sides which can be inscribed in a circle of radius R . The magnetic field induction at the centre of polygon due to one of the polygon is A wire of length l is used to form coil . THe magnetic [...]
Two very long, straight wires carrying , currents as shown in figure. Find all locations where the net magnetic field is zero.
17
Oct
Two very long, straight wires carrying , currents as shown in figure. Find all locations where the net magnetic field is zero. currents as shown in figure. Find all locations where the net magnetic field is zero. straight wires carrying Two very long October 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + [...]
The magnetic field at O due to current in the infinite wire forming a loop as shown in figure is
17
Oct
The magnetic field at O due to current in the infinite wire forming a loop as shown in figure is The magnetic field at O due to current in the infinite wire forming a loop as shown in figure is October 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,