Physics question and answers for December 08, 2023
- Q An electron is travelling with velocity u 3 5 m s in a magnetic field B 61 43 tesla What is the magnitude and direction of the force F acting...
- Q 0 Two circular coils are made of two identical wires of same length and carry same current If the number of turns of the two coils are 4 and 2...
- Q B 4 Consider a quarter circular conducting ring of large radius r with its centre at the origin where a magnetic dipole of moment m is placed as shown in...
- Q A long straight wire carries a current of 40 A in a region where a uniform externa magnetic field has a 30 T magnitude and is parallel to the current...
- Q 0 Consider two long thin conductors A and B each carrying current I as shown in the figure Co sidering A to be fixed which of the following statements is...
- Q A coil of 100 turns kept in magnetic field B 0 2T carries a current of 2A as shown in figure Torque on coil and which side of coil comes...
- Q 2 You are given 13 0 m of thin wire You form the wire into a circular coil with 50 turns If this coil is placed with its axis par...
- Q A circular coil carrying current I is placed in a region of uniform magnetic field acting perpendicular to a coil as shown in the figure Mark correct option X X...
- Q 5 equal zero So one in which A circular coil of 100 turns and effective diameter 20 cm caries a current of 1A It is to turned in a magnetic...
- Q A 250KVA single phase transformer has 250 turns in primary and 40 turns in secondar windings The primary is connected to 1500 volts 50 Hz mains Calculate i Primary and...
- Q The pressure does the lateral surface of a long straight solenoid with n turns per unit length experience when a current I flows through it is Hon 1 Find k...
- Q A metal bar of mass m slides frictionlessly on two parallel conducting rails a distance 1 apart A resistor R is connected across the rails and a uniform magnetic field...
- Q A thin rod is bent in the shape of a small circle of radius r If the charge per unit length of the rod is c and if the circle...
- Q Consider the mass spectrometer shown schematically in the figure below The electric field between the plates of the velocity selector is 7600 V m and the magnetic fields in both...
- Q A straight wire carries a current of 50 A and the loop is moved to the right with a constant velocity v 10 m s the induced emf in the...
- Q 66 A magnet 20 cm long with its poles concentrated at its ends is placed vertically with its north pole on the table At a point due 20 cm south...
- Q A circular current carrying loop of mass 100 g is free to rotate about the axis yy If i 1 A and B 0 1 Tthen the time period of...
- Q A loop of wire has the shape shown in the drawing The top part of the wire is bent into a semicircle of radius r 0 10 m The normal...
- Q c29p5 Consider the circuit in the figure b The curved segments are arcs of circles of angle 250 and radii a 14 cm and b 7 cm The straight segments...
- Q A oll Of has negligible resistance As sh in the schematic figure its two ends are connected to two wires and it is hanging by those wires with its plane...
- Q 63 A tuning fork of frequency N is sounded at the open end of a long cylindrical tube having a side opening and fitted with a movable reflection piston At...
- Q A metallic rod of length is rotated in a horizontal plane with an angular velocity w where no magnetic field exists If emf induced in the rod charge and mass...
- Q The figure below shows two wires each carrying a current The first wire consists of a circular arc of radius Re0 37m and two equal radial lengths of L 0...
- Q A very long thin rod carries electric charge with the linear density 42 0 nC m It lies along the x axis and moves in the x direction at a...
- Q A Zero B HORJ C HORJ D 3 4 HORJ 2R 31 The diagram above shows the cross section of a long cable that has an inner wire of radius...
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