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An infinitelly long straight wire with current I flowing along the positive z – axis is located at coordinates P ( -12 m , 5 m ) . Determine the unit vector showing the direction of magnetic field at the origin.
16
Oct
An infinitelly long straight wire with current I flowing along the positive z – axis is located at coordinates P ( -12 m , 5 m ) . Determine the unit vector showing the direction of magnetic field at the origin. 5 m ) . Determine the unit vector showing the direction of magnetic field [...]
Figure shows a square loop made from a uniform wire. Find the magnetic field at the centre of the square if a battery is connected between points A and C.
16
Oct
Figure shows a square loop made from a uniform wire. Find the magnetic field at the centre of the square if a battery is connected between points A and C. Figure shows a square loop made from a uniform wire. Find the magnetic field at the centre of the square if a battery is connected [...]
A +6μC point charge is moving at a constant velocity of 8 × 10^6 m/s in the +y direction, relative to a reference frame. At the instant when the point charge is at the origin of this reference frame, what is the magnetic field vector it produces at the following points? (a) x = 0.500 m,y = 0,z = 0, and (b) x=0 , y = −0.500 m, z = 0.
16
Oct
A +6μC point charge is moving at a constant velocity of 8 × 10^6 m/s in the +y direction, relative to a reference frame. At the instant when the point charge is at the origin of this reference frame, what is the magnetic field vector it produces at the following points? (a) x = 0.500 [...]
Tags:
A +6μC point charge is moving at a constant velocity of 8 × 10^6 m/s in the +y direction ,
and (b) x=0 ,
relative to a reference frame. At the instant when the point charge is at the origin of this reference frame ,
what is the magnetic field vector it produces at the following points? (a) x = 0.500 m ,
y = −0.500 m ,
y = 0 ,
z = 0 ,
In the x-y-plane, the region y>0 has a uniform magnetic field B 1 k ^ and the region y<0 has another uniform magnetic field B 2 k ^ . A positively charged particle is projected from the origin along the positive y-axis with speed V o = π m/s at t = 0, as shown in the figure. Neglect gravity in this problem. Let t = T be the time when the particle crosses the x-axis from below for the first time. If B 2 =4B 1 , the average speed of the particle, in m/s , along the x-axis in the time interval T is ________.
16
Oct
In the x-y-plane, the region y>0 has a uniform magnetic field B 1 k ^ and the region y<0 has another uniform magnetic field B 2 k ^ . A positively charged particle is projected from the origin along the positive y-axis with speed V o = π m/s at t = 0, as [...]
A moving coil galvanometer has 50 turns and each turn has an area 210 . The magnetic field produced by the magnet inside the galvanometer is 0.02 . The torsional constant of the suspension wire is 10 . When a current flows through the galvanometer, a full scale deflection occurs if the coil rotates by 0.2 . The resistance of the coil of the galvanometer is 50 . This galvanometer is to be converted into an ammeter capable of measuring current in the range 01.0 . For this purpose, a shunt resistance is to be added in parallel to the galvanometer. The value of this shunt resistance, in , is __________.
16
Oct
A moving coil galvanometer has 50 turns and each turn has an area 210 . The magnetic field produced by the magnet inside the galvanometer is 0.02 . The torsional constant of the suspension wire is 10 . When a current flows through the galvanometer, a full scale deflection occurs if the coil rotates by [...]
Two parallel wires in the plane of the paper are distance X0 apart. A point charge is moving with speed u between the wires in the same plane at a distance X1 from one of the wires. When the wires carry current of magnitude I in the same direction , the radfius of curvature of the path of the point charge is R1. In contrast, if the currentsd I in the two wires have directions opposite to each other, the radius of curvature of the path is R2. if X0/X1 = 3, the value of R1/R2 is
16
Oct
Two parallel wires in the plane of the paper are distance X0 apart. A point charge is moving with speed u between the wires in the same plane at a distance X1 from one of the wires. When the wires carry current of magnitude I in the same direction , the radfius of curvature of [...]
A uniform magnetic field B exists in the region between x = 0 and x = 3 R/2 (region 2 in the figure) pointing normally into the plane of the paper. A particle with charge +Q and momentum p directed along x-axis enters region 2 from region 1 at point P 1 (y =−R). Which of the following option(s) is/are correct?
16
Oct
A uniform magnetic field B exists in the region between x = 0 and x = 3 R/2 (region 2 in the figure) pointing normally into the plane of the paper. A particle with charge +Q and momentum p directed along x-axis enters region 2 from region 1 at point P 1 (y =−R). Which [...]
A particle of mass M and positive charge Q, moving with a constant velocity u 1 = 4 i ^m/s , enters a region of uniform static magnetic field normal to the x-y plane. The region of the magnetic field extends from x=0 to x=L for all values of y. After passing through this region, the particle emerges on the other side after 10 milliseconds with a velocity u 2 = 2( 3 i ^ + j ^)m/s . The correct statement(s) is (are)
16
Oct
A particle of mass M and positive charge Q, moving with a constant velocity u 1 = 4 i ^m/s , enters a region of uniform static magnetic field normal to the x-y plane. The region of the magnetic field extends from x=0 to x=L for all values of y. After passing through this region, [...]
Tags:
A particle of mass M and positive charge Q ,
enters a region of uniform static magnetic field normal to the x-y plane. The region of the magnetic field extends from x=0 to x=L for all values of y. After passing through this region ,
moving with a constant velocity u 1 = 4 i ^m/s ,
the particle emerges on the other side after 10 milliseconds with a velocity u 2 = 2( 3 i ^ + j ^)m/s . The correct statement(s) is (are) ,
The dipole moment of a circular loop carrying a current I, is m and the magnetic field at the centre of the loop is B1 . When the dipole moment is doubled by keeping the current constant, the magnetic field at the centre of the loop is B2 . The ratio B1/B2 is:
16
Oct
The dipole moment of a circular loop carrying a current I, is m and the magnetic field at the centre of the loop is B1 . When the dipole moment is doubled by keeping the current constant, the magnetic field at the centre of the loop is B2 . The ratio B1/B2 is: is m [...]
Consider the motion of a positive point charge in a region where are simultaneous uniform electric and magnetic field E =E 0 j ^ and B =B 0 j ^ . At time t=0, this charge has velocity v in the x-y plane, making an angle θ with the x-axis. Which of the following option(s) is (are) correct for time t>0?
16
Oct
Consider the motion of a positive point charge in a region where are simultaneous uniform electric and magnetic field E =E 0 j ^ and B =B 0 j ^ . At time t=0, this charge has velocity v in the x-y plane, making an angle θ with the x-axis. Which [...]
Tags:
Consider the motion of a positive point charge in a region where are simultaneous uniform electric and magnetic field E =E 0 j ^ and B =B 0 j ^ . At time t=0 ,
making an angle θ with the x-axis. Which of the following option(s) is (are) correct for time t>0? ,
this charge has velocity v in the x-y plane ,