Physics question and answers for December 05, 2023
- Q A wooden stick of length 3 is rotated about an end with constant angular velocity in a uniform magnetic field B perpendicular to the plane of motion If the upper...
- Q For the given current distribution the magnetic field at point P is 5A4 1 O Ho 4 2 5m P K 5m Ho T 2 2 5A 3 Ho 2...
- Q A circular current loop is shown in the adjacent figure The magnetic field in the region is along x axis and its magnitude in the space is increasing with increasing...
- Q A vertical wire carries an electric current into the page An electron approaches the current from east What is the direction of the magnetic force on the electron N W
- Q 16 If B B and B are the magnetic field due to 1 12 and 3 then in Ampere s circuital law B di Mol Bis 01 01 2 1...
- Q for paramagnetic substances is valid 1 above curie temperature 2 below curie temperature 3 Above magnetic saturation 4 below magnetic saturation 34 A in
- Q 3 An ionized gas contains both positive and negative ions If it is subjected simultaneously to an electric field along the x direction and a magnetic field along the z...
- Q D A very small coplanar at the centre of a square wire of dimension The mutual inductance between the loops is 1 2 3 2 2 or 2 2 or...
- Q 5 A solid current carrying conductor of radius R is having current per unit area J as J ar R where a is a constant and ris distance from axis...
- Q A symmetric star shaped conducting wire loop is Carrying a steady state current I as shown in the figure The distance between the diametrically opposite vertices of the star is...
- Q The oscillator frequency of a cyclotron is 10 MHz What should be the operating magnetic field for accelerating proton 1 0 156 T 3 0 356 T 2 0 256...
- Q D An electron enters in a viscous medium having uniform perpendicular magnetic field due to which it moves in spiral path of decreasing radii Its angular momentum 1 Increases 2...
- Q An a particle experiences a force of 3 84x10 14 N when its moves perpendicular to magnetic field of 0 2 Wb m then speed of the a particle is...
- Q F A long straight hollow conductor tube carrying a current has two sections A and C of unequal cross sections joined by a conical section B 1 2 and 3...
- Q A ring of radius 10 cm carrying current 2A placed in horizontal plane in uniform magnetic field in such a way that field makes an angle 30 with vertical direction...
- Q 3 1 Ho 3M 4 r 2M Mo Ho 2M 41 Magnetic field induction at P which is equidistant from centres of three short magnetic dipoles is 2 N 4...
- Q 4 2 3x10 T The magnetic moment of a short bar magnet is 2 Am The magnetic field at a point 1 m away from it in a direction making...
- Q A conducting rod AB of mass m and length is supported by conducting massless wires and carrying a current I as shown in the figure The rod is slightly displaced...
- Q Illustration 2 Energy from the sun falls on the earth at a rate of 1353 W m2 Which is known as solar constant i e the power incident per unit...
- Q Force between two identical short bar magnets whose centres are r metre apart is 4 8 N when their axe are in the same line If the separation is increased...
- Q 4 The component of the magnetic field along the line OP at the point P due to the bar magnet of magnetic moment 1 732 A m is 1 3...
- Q Two charges move as shown in figure 2 Charge 1 is 3x10 C and has a velocity of 9x106 m s while charge 2 is 8x10 C and has a...
- Q A conducting square loop of side a is kept on a sufficiently rough horizontal surface and connected to a charged capacitor as shown in the figure The arms AB BE...
- Q 1 BR 2 BR 3 TOBR2 2 4 BR 2 7 Which of the following is correct for periodic electromagnetic induction 1 maximum flux zero emf 2 zero flux maximum...
- Q 24 If the resistance of the upper half of a rigid loop is half that of the lower half the magnitude o magnetic induction at the centre is equal to...
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