Edward Leedskalnin offers a 4 page pamphlet on his theory of magnetsFull description
thinkiit pre foundation class x physics
thinkiit hcverma hindi
E. Leedskalnin, Rock Gate, Homestead, Florida USA 1945 This writing is lined up so that when you read it you look East, and all the description you will read about magnetic current…Full description
hc verma Hindi
E. Leedskalnin, Rock Gate, Homestead, Florida USA 1945 This writing is lined up so that when you read it you look East, and all the description you will read about magnetic current…Full description
E. Leedskalnin, Rock Gate, Homestead, Florida USA 1945 This writing is lined up so that when you read it you look East, and all the description you will read about magnetic current…Full description
Three long straight wires are c onnected parallel to each other across a battery of negligible internal resistance. he ratio of their resistances are 3: 4: 5. W hat is the ratio of distance of middle wire from the others if the net force experien ced by it is zero? (a) 4: 3 (b) 3: 1 (c) 5: 3 (d) 2 : 3 A circular current carrying coil has radius R. the distance from the centre of the coil on the axis where the magneti induction will be th of its value at the c ntre of the coil is (a) R (b) 2R (c) R (d) 2R
Q.4.
FACULTY : MONI KAKATI
Two thin long parallel wires se parated by a distance b are carrying current i each. The magnitude of the force pe r unit length exerted by one wire on the oth er is (a) (b)
(c)
Q.2.
urrent
Q.9.
Q.10.
(c)
(a)
Q.8.
(d) (b)
Equal current i flows in two segments of a circular loop in the directio ns shown in figure. Radius of the loop i s a. Magnetic field at the centre of the lo p is
(b) (c)
(d)
Q.11.
Two particles X and Y haviing equal charges, after being accel rated through the same potential differen ce, enter a region of uniform magnetic field and describe circular paths of r adii R1 and R2 respectively. respectively. The ratio of t e mass of X to that of Y is (a) (R1 / R2)1/2 (b) R2 / R1 2 (c)(R1 / R2) (d) R1 /R2
Q.12.
A particle of charge q and mass m moves in a circular orbit of ra dius r with angular speed . The ratio of the agnitude of its magnetic moment to that o f its angular momentum depends on (a) and q (b) q nd m (c) q and m (d) an m
A current carrying square l oop is placed near an infinitely long curr nt carrying wire as shown in figure. The tor que acting on the loop is
(a) zero
A particle of specific charge moving from the origin under the action of a n electric field =E0 and magnetic fiel B0 . Its velocity at (x, 0, 0) is 4 +3 +3 . The value of x is
A long wire carries a current of 20 A along the axis of solenoid. The field ue to the solenoid is 4mT. The resultant field at a point 3mm from the axis of sol noid is (a) 1.33 mT (b) 4.2 mT (c) 2.1 mT (d) 8.4 mT
(a)
Two electrons move parallel to each other with equal speed v. The ratio f magnetic and electrical forces between t hem is (a) (b) (c) (d)
A non conductin g thin disc of r adius r charged uniformly over one si e with surface density rotates about its axis with an angular velocity . The ma netic induction at the centre is (a) (b) (c) (d) None of these
(c)
Find the magnetic field at P d e to the arrangement shown
-
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Q.13.
In the figure the force on the ire ABC in the given uniform magnetic fielld will be (B = 2 tesla)
(a) 4(3 + 2 ) Nt (c) 30 Nt Q.14.
A charged particle with specifi charge s moves undeflected through a r egion of space containing mutually per endicular and uniform electric and magn etic fields e and B. When the electric field i s switched off, the particle will move in a c ircular path of radius (d) (a) (b) (c)
Q.15.
(b) 20 Nt (d) 40 Nt
An insulating rod of length c rries a charge q uniformly distributed on it. The rod is pivoted at one of is ends and is rotated at a frequency about a fixed perpendicular axis. The magn tic moment of the rod is
(c) (a)
Q.16.
(d) (b)
Equal currents are flowing in t long wires along positive x, y directions. The magnetic field (0, 0, - ) would be ( i = curre wire)
