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Which of the following statement is correct regarding the Coulomb’s force and Biot-Savart’s

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Which of the following statement(s) is/are

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Four particles `alpha`-particle, deuteron, electron and a `Cl^-` ion enter in a transverse magnetic field perpendicular to it with same kinetic energy. Their paths are as shown in figure. Now, match the following two columns. Column I Column II A. Deuteron p. Path-1 B. `alpha`-particle q. Path-2 C. Electron r. Path-3 D. `Cl^-` s. Path-4

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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A charged particle with some initial velocity is projected in a region where non-zero electric and/or magnetic field(s) are present.In Column I, information about the existence of electric and/or magnetic field(s) and direction of initial velocity of charged particle are given, while in Column II the probable path of the charged particle is mentioned. Match the entries of Column I with the entries of Column II and select the correct answer from the codes given below. Column I Column II A. `E=0, B!=0, E!= B` and initial velocity is at any angle with `B (theta!=90°)`

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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A square current carrying loop abed is placed near an infinitely long another current carrying wire ef. Now, match the following two columns. Column I Column II A. Net force on `bc and da` p. zero B. Net force on `ab and cd` q. non-zero C. Net force on complete loop `abcd` r. rightwards D. Net force on ab s. constant

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Assertion: Two infinitely long wires A and B carry unequal currents in inward direction.Then, there is only one point (excluding the points at infinity), where net magnetic field is zero.Reason: That point lies between points A and

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Assertion: The magnetic field produced by a current carrying solenoid is independent of its length and cross-sectional area. Reason: The magnetic field inside the solenoid is

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Assertion: A magnetic field interacts with a moving charge and not with a stationary charge. Reason: A moving charge produce a magnetic

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Assertion: Electron moving perpendicular to B will perform circular motion. Reason: Force by magnetic field is perpendicular to

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Assertion: A charge particle is released from rest in magnetic field, then it will move in a circular path. Reason: Work done by magnetic field is

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Assertion: If a moving charged particle enters into a region of magnetic field from outside, it does not complete a circular path. Reason: Power associated with the force exerted by a magnetic field on a moving charged particle is always equal to

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Assertion: If a charged particle is projected in a region, where B is perpendicular to velocity of projection, then the net force acting on the particle is independent of its mass. Reason: The particle is performing uniform circular motion and force acting on it is

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Assertion: When a charged particle moves in a region of magnetic field such that its velocity is at some acute angle with the direction of field, its trajectory is a helix. Reason: Perpendicular component of velocity causes a rotating centripetal force and parallel component of velocity does not produces any

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Assertion: A beam of electron can pass undeflected through a region of E and B. Reason: Force on moving charged particle due to magnetic field may be zero in some

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Assertion: If the path of a charged particle in a region of uniform electric and magnetic field is not a circle, then its kinetic energy may remain constant. Reason: In a combined electric and magnetic fields region, a moving charge experiences a net force `F =qE +q(v xx B)`, where symbols have their usual

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assertion: Upper wire shown in figure is fixed. At a certain distance `x`, lower wire can remain in equilibrium.Reason: The above equilibrium of lower wire is stable

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assertion: For a current carrying wire loop of `N` turns, placed in a region of a uniform magnetic field B , the torque acting on it is given by `m xx B`. Reason: Whenever the magnetic moment m is perpendicular to B, then torque on the loop will be

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Assertion: The current sensitivity of a galvanometer is the deflection of current per unit current passing through the coil. Reason: The galvanometer can be used as a detector to check, if a current is flowing in the

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assertion: If we increase the current sensitivity of a galvanometer by increasing number of turns, its voltage sensitivity also increases. Reason: Resistance of a wire also increases with

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Electron Moving in Magnetic Field An electron with a speed `v_0 ( < < c)` moves in a circle of radius `r_0`, in a uniform magnetic field. This electron is able to travel in a circular path as magnetic field is perpendicular to the velocity of the electron. The time required for one revolution of the electron is `T_0`. The speed of the electron is now, doubled to `2v_0`.The radius of the circle will change

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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