Physics question and answers for September 13, 2024
- Q An ideal inductor is in turn put across 220 V 50 Hz and 220 V 100 Hz supply The current flowing through it in two cases will be More in...
- Q 1 0 24 Nm 12 0 12 Nm 3 0 15 Nm 4 0 20 Nm A proton and an alpha particle both enter a region of uniform magnetic field...
- Q 1 2R R 2 R 2R 3 R 2R The magnetic needle of a tangent galvanometer is deflected by an angle 30 due to a magnet The horizontal componen of...
- Q 4 The iduced electric field due to the changing magnetic field A metallic rod of mass per unit length 0 5kg m is lying horizontally on a smooth inclined plane...
- Q A bar magnet of length I and magnetic dipole moment M is bent in the form of an arc as shown in figure The new magnetic dipole moment will be...
- Q 1 40 92 2 25 2 A cylindrical conductor of radius R is carrying a constant current The plot of the magnitude of the magnetic field B with the distance...
- Q For protecting a sensitive equipment from the extrnal magnetic field it should be 1 placed inside an aluminium can 2 placed inside an iron can 3 wrapped with insulation around...
- Q Four wires of equal length are bent in the form of four loops P Q R and S These are suspended in a uniform magnetic field and same current is...
- Q A rectangular loop of length 20 cm along y axis and breadth 10 cm along z axis carries a current of 12 A If a un magnetic field 0 3...
- Q A closed loop PQRS carrying a current is placed in a uniform magnetic SR and RQ are F F and F respectively and are in the plane of the paper...
- Q 3 3 F A current loop consists of two identical semicircular parts each of radius R one lying in the x y plane and the other in x z plane...
- Q There are 50 turns of a wire in every cm length of a long solenoid If 4A currents is flowing in the solenoid the approximate value of magnetic field along...
- Q A body covered a distance of L m along a curved path of a quarter circle The ratio of distance to displacement is 2 2 2 T if he starts...
- Q 6 Points A block with a mass of 4 00 kg connected to a spring is undergoing simple harmonic motion The block has a maximum velocity of 4 50 m...
- Q 1 infinite 2 zero 4 non uniform The correct curve between the magnetic induction 2 along the axis of a along solenoid due to current flow i in it and...
- Q One mole of oxygen is taken from 1 to 2 by process shown in diagram What heat is rejected out of gas P Pa 600 150 0 ww 0 2...
- Q A long straight metal rod has a radius of 2 0 mm and a surface charge of density 6 nC m Determine the magnitude of the electric field 6 mm...
- Q 5 The vector form of Biot Savart s law for a current carrying element is 3 dB Ha Id xf 4 r dB Ho 4 Idl sin p r 2...
- Q Soft iron is used in many electrical machines for 1 low hysteresis loss and low permeability 3 high hysteresis loss and low permeability For protecting a sensitive equipment from the...
- Q Starting with the equation of motion of a three dimensional isotropic harmonic oscillator i 1 2 3 dp dt deduce the conservation equation where kr dA dt A 0 1...
- Q A particle of charge q and mass m move in a circular orbit of radius r with frequency v The ratio of th magnetic moment to angular momentum is RPMT...
- Q portion of diameter R is cut out from a uniform circular disc of mass M and radius R as shown in figure The moment of inertia of the remaining shaded...
- Q A conducting rod of length East West falls vertically under gravity in a region of uniform magnetic field B North South horizon The magnetic field vecto Bis inclined at angle...
- Q A student focuses the image of a candle flame placed at about 2 m from a convex lens of focal length 10 cm on a screen After that he moves...
- Q A rocket having fuel as its bulk is initially at rest Neglecting effect of gravity when fuel is burning at a constant rate acceleration a of rocket with respect to...
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