Description : Assertion If a charged particle enters from outside in uniform magnetic field, then it will keep on rotating in a circular path. Reson Magnetic force
Last Answer : Assertion If a charged particle enters from outside in uniform magnetic field, then it will keep on ... . If Assertion is false but Reason is true.
Description : 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 con
Last Answer : Assertion If the path of a charged particle in a region of uniform electric and magnetic field is ... VxxB),` where symbols have their usual meanings.
Description : Assertion A charged particle is rotating in a circular path in uniform magnetic field. Then, plane of circle is perpendicular to the magnetic field. R
Last Answer : Assertion A charged particle is rotating in a circular path in uniform magnetic field. Then, plane of ... . If Assertion is false but Reason is true.
Description : Assertion In non-uniform magnetic field speed of a charged particle varies. Reason Work done by magnetic force on a charged particle is always zero.
Last Answer : Assertion In non-uniform magnetic field speed of a charged particle varies. Reason Work done by ... If Assertion is false but Reason is true.
Description : Assertion When a charged particle moves perpendicular to a uniform magnetic field then its momentum remains constant. Reason Magnetic force acts perpe
Last Answer : Assertion When a charged particle moves perpendicular to a uniform magnetic field then its momentum ... Assertion is false but Reason is true.
Description : Assertion If velocity of charged particle in a uniform magnetic field at some instant is `(a_(1)hat(i)-a_(2)hat(j))` and at some other instant is `(b_
Last Answer : Assertion If velocity of charged particle in a uniform magnetic field at some instant is `(a_(1)hat(i ... D. If Assertion is false but Reason is true.
Description : Work done by a uniform magnetic field in moving a charged particle in a circular path is a) qvB sin θ b) mg sin θ c) zero d) mg cos θ
Last Answer : Zero
Description : A charged particle is moving in a UNIFORM magnetic field. If the direction of motion of the charged particle is at right angles to the magnetic field, describe the shape of the charged particle's path.
Last Answer : ANSWER: CIRCULAR or CIRCLE
Description : A charged particle is moving in a UNIFORM magnetic field. If the direction of motion of the charged particle is parallel to the magnetic field, describe the shape of the charged particle's path.
Last Answer : ANSWER: STRAIGHT LINE
Description : Assertion In a uniform magnetic field `B=B_(0)hat(k)`, if velocity of a charged particle is `v_(0)hat(i)` at t = 0, then it can have the velocity `v_(
Last Answer : Assertion In a uniform magnetic field `B=B_(0)hat(k)`, if velocity of a charged particle is `v_( ... . D. If Assertion is false but Reason is true.
Description : 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 ze
Last Answer : Assertion A beam of electron can pass undeflected through a region of E and B. Reason Force on ... to magnetic field may be zero in some cases.
Description : Assertion If a charged particle is pronected in a region, where `B` is perpendicular to velocity of projection, then the net force acting on the parti
Last Answer : Assertion If a charged particle is pronected in a region, where `B` is perpendicular to velocity of ... D. If Assertion is false but Reason is true.
Description : A charged particle is rotating in uniform circular motion in a uniform magnetic field . Let r= radius of circule, v= speed of particle k = kinetic ene
Last Answer : A charged particle is rotating in uniform circular motion in a uniform magnetic field . Let r ... angular speed. then match the following two columns.
Description : A charged particle enters in a uniform magnetic field perpendicular to it. Now match the following two columns.
Last Answer : A charged particle enters in a uniform magnetic field perpendicular to it. Now match the following two columns.
Description : A charged particle enters into a uniform magnetic field with velocity `v_(0)` perpendicular to it , the length of magnetic field is `x=sqrt(3)/(2)R`,
Last Answer : A charged particle enters into a uniform magnetic field with velocity `v_(0)` perpendicular to it , the length of ... 3)v_(0))/(2)` D. `v_(0)`
Description : A charged particle P leaves the origin with speed `v=v_0` at some inclination with the x-axis. There is a uniform magnetic field B along the x-axis. P
Last Answer : A charged particle P leaves the origin with speed `v=v_0` at some inclination with the x-axis. There is ... 0)` C. Both are correct D. Both are wrong
Description : If a charged particle is a plane perpendicular to a uniform magnetic field with a time period T Then
Last Answer : If a charged particle is a plane perpendicular to a uniform magnetic field with a time period T Then A. `T^(2) ... ` C. `Tpropr^(2)` D. `Tpropr^(0)`
Description : When a charged particle enters a uniform magnetic field its kinetic energy
Last Answer : When a charged particle enters a uniform magnetic field its kinetic energy A. remains constant B. increases C. decreases D. becomes zero
Description : A charged particle of mass `m` and charge `q` travels on a circular path of radius `r` that is perpendicular to a magnetic field `B`. The time takeen
Last Answer : A charged particle of mass `m` and charge `q` travels on a circular path of radius `r` that is perpendicular to a ... (2pi qB)/(m)` D. `(2pi m)/(qB)`
Description : If the velocity of charged particle has both perpendicular and parallel components while moving through a magnetic field ,then what is the path follow
Last Answer : If the velocity of charged particle has both perpendicular and parallel components while moving through a ... B. Ellipatical C. Linear D. Helical
Description : A particle is projected in a plane perpendicular to a uniform magnetic field. The area bounded by the path described by the particle is proportional t
Last Answer : A particle is projected in a plane perpendicular to a uniform magnetic field. The area bounded by the ... C. the kinetic energy D. None of these
Description : A proton of energy `8 eV` is moving in a circular path in a uniform magnetic field. The energy of an alpha particle moving in the same magnetic field
Last Answer : A proton of energy `8 eV` is moving in a circular path in a uniform magnetic field. The energy of an alpha ... will be A. 4eV B. 22eV C. 8eV D. 6eV
Description : Assertion A charged particle is rotating in a circle. Then magnetic field (B) at centre of circle and magnetic moment (M) produced by motion of charge
Last Answer : Assertion A charged particle is rotating in a circle. Then magnetic field (B) at centre of circle and ... M and B are always parallel to each other.
Description : Assertion An `alpha-`particle and a deuteron having same kinetic energy enter in a uniform magnetic field perpendicular to the field. Then, radius of
Last Answer : Assertion An `alpha-`particle and a deuteron having same kinetic energy enter in a uniform magnetic ... If Assertion is false but Reason is true.
Description : The earth's gravitational force field is said to be conservative force field because a.The work acted by the earth's gravitational field on a particle is independent on the path traced out by ... directional component always acting normal to a body e.The value of gravitational force rise is fixed
Last Answer : a. The work acted by the earth's gravitational field on a particle is independent on the path traced out by the particle
Description : Assertion Maganetic field (B) and electric field (E) are present in a this region. Net force on a charged particle in this region is zero , if `E=Bxx
Last Answer : Assertion Maganetic field (B) and electric field (E) are present in a this region. Net force on a ... v` Reason E/B has the dimensions of velocity.
Description : A charged particle experience magnetic force in the presence of magnetic field. Which of the following statement is correct?
Last Answer : A charged particle experience magnetic force in the presence of magnetic field. Which of the ... and magnetic field is parallel to the velocity
Description : The force on a charged particle moving parallel to magnetic field lines is: w) in the direction of the field x) zero y) perpendicular to the field z) in the opposite direction of the field
Last Answer : ANSWER: X -- ZERO
Description : Force on a moving charge in a uniform magnetic field depends uponA. magnetic flux density B. the charge on the particle C. the speed of particle D. all of above
Last Answer : all of above
Description : According to law of triangle of forces (A) Three forces acting at a point will be in equilibrium (B) Three forces acting at a point can be represented by a triangle, each side ... point are in equilibrium, each force is proportional to the sine of the angle between the other two
Last Answer : (C) If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium
Description : According to Lami's theorem (A) Three forces acting at a point will be in equilibrium (B) Three forces acting at a point can be represented by a triangle, each side being proportional to ... point are in equilibrium, each force is proportional to the sine of the angle between the other two
Last Answer : Answer: Option D
Description : Which of the following statement is false? a.The potential energy of a particle has the form Ep = k2x. The force acting on the particle is constant (k is a constant) b.The linear velocity of ... zag path while ascending a steep hill e.The density of milk decreases when cream is taken out of milk
Last Answer : e. The density of milk decreases when cream is taken out of milk
Description : The resultant of a force acting on a body will be zero, if the body a.Rotates with uniform acceleration b.Moves along a curved path c.Rotates d.Does not rotate e.Rotates with uniform deceleration
Last Answer : d. Does not rotate
Description : A particle of mass m and charge Q moving with a velocity v enters a region on uniform field of induction B Then its path in the region is s
Last Answer : A particle of mass m and charge Q moving with a velocity v enters a region on uniform field of induction B ... . circular,If `v.B=0` D. None of these
Description : A circular coil of `20turns` and radius `10cm` carries a current of `5A`. It is placed in a uniform magnetic field of `0*10T`. Find the torque acting
Last Answer : A circular coil of `20turns` and radius `10cm` carries a current of `5A`. It is placed in a uniform magnetic ... Nm B. 3.14 Nm C. 0.314 Nm D. zero
Description : A current carrying loop is placed in a uniform magnetic field. The torque acting on it does not depend upon
Last Answer : A current carrying loop is placed in a uniform magnetic field. The torque acting on it does not ... turns in the loop D. strength of the current
Description : When two or more atoms are linked together the force holding them together is called a _____. a. charged particle b. chemical bond. c. electric attraction. d. magnetic bond.
Last Answer : b. chemical bond.
Description : 3. A positively-charged particle (alpha-particle) projected towards the west is deflected towards north by a magnetic field. The direction of magnetic field is -Physics-10
Last Answer : The direction of the magnetic field can be determined using the Fleming’s Left hand rule. According to the rule, if we arrange our thumb, forefinger and the middle finger of the left ... north, hence the direction of magnetic field will be upward according to Fleming’s Left hand rule.
Description : A charged particle with a velocity `2xx10^(3) ms^(-1)` passes undeflected through electric field and magnetic fields in mutually perpendicular directi
Last Answer : A charged particle with a velocity `2xx10^(3) ms^(-1)` passes undeflected through electric field and magnetic fields ... 1)` D. `1.33xx10^(3)NC^(-1)`
Description : Two charged particles have charges and masses in the ratio `2:3` and `1:4` respectively. If they enter a uniform magnetic field and move with the same
Last Answer : Two charged particles have charges and masses in the ratio `2:3` and `1:4` respectively. If they enter a uniform magnetic ... `1:4` C. `3:5` D. `1:6`
Description : Two charged particles traverse identical helical paths in a completely opposite sense in a uniform magnetic field `vec(B)=B_(0)hat(K)`
Last Answer : Two charged particles traverse identical helical paths in a completely opposite sense in a uniform magnetic field `vec(B)=B_ ... + ((e)/(m))_(2) = 0`
Description : In the mass spectrograph, two positively charged ions having the same velocity pass through a slit and enter a uniform magnetic field at right angles to their initial velocities. The ions will NOT be ... charges and their masses are equal z) the ratios of their charges to their masses are equal
Last Answer : ANSWER: Z -- THE RATIOS OF THEIR CHARGES TO THEIR MASSES ARE EQUAL
Description : An electron and a proton are moving at the same speed in circular paths in the same uniform magnetic field. The radius of the path of the proton is one of the following. Is this radius: w) the same ... of the electron y) a little larger than that of the electron z) smaller than that of the electron
Last Answer : ANSWER: X -- ABOUT 2000 TIMES LARGER THAN THAT OF THE ELECTRON
Description : A moving particle of charge q and mass m enters a uniform magnetic field perpendicular to the direction of field. Then
Last Answer : A moving particle of charge q and mass m enters a uniform magnetic field perpendicular to the ... circular path (D) its velocity vector changes
Description : A non-relative proton enters at right angles to a uniform magnetic field of `30 mT`. What is the frequency of revolution of the particle if the field
Last Answer : A non-relative proton enters at right angles to a uniform magnetic field of `30 mT`. What is ... of the particle if the field is sufficiently deep?
Description : A particle of charge -q and mass m enters a uniform magnetic field `vecB` (perpendicular to paper inward) at P with a velocity `v_0` at an angle `alph
Last Answer : A particle of charge -q and mass m enters a uniform magnetic field `vecB` (perpendicular to paper inward) at P ... for time `t = (2m(pi-alpha))/(Bq)`
Description : A proton and a α particle enter a region having a perpendicular uniform magnetic field. The ratio of time period of proton (τp) to time period of α particle (τα) is a) 1:4 b) 4:1 c) 2:1 d) 1:2
Last Answer : d) 1:2
Description : An α particle moves perpendicular to a constant magnetic field of strength 1.2 T in a circular path of radius 0.7 m. The speed of α particle in ms-1 is ______________ a) 2.7 × 107 b) 2.6 × 107 c) 3.2 × 107 d) 2.0 × 107
Last Answer : a) 2.7 × 107
Description : A proton is moving in a uniform magnetic field B in a circular path of radius a in a direction perpendicular to Z- axis along which field B exists. Ca
Last Answer : A proton is moving in a uniform magnetic field B in a circular path of radius a in a direction perpendicular to Z- ... 2)a` C. `a^(2) eB` D. `aeB`
Description : An electron is travelling at right angles to a uniform magnetic field of flux density 1.2 mT with a speed of 8 × 106 m s-1, the radius of circular path followed by electron is A. 3.8 cm B. 3.7 cm C. 3.6 cm D. 3.5 cm
Last Answer : 3.8 cm