Question
A charged particle moves in a magnetic field $\vec B = 10\,\hat i$ with initial velocity $\vec u = 5\hat i + 4\hat j$ The path of the particle will be
✓
Answer
$Y-component$ of velocity will make the particle to move in circle whereas $x$ $-component$ of velocity will make particle move along $x$$-axis.$ So motion is helical.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The length of a vertical pole at the surface of a lake of water $\left(\mu=\frac{4}{3}\right)$ is $24 \,cm$. Then to an under-water fish just below the water surface the tip of the pole appears to be ......... $cm$ above the surface
→A rigid body is rotating with variable angular velocity $(a - bt)$ at any instant of time $ t.$ The total angle subtended by it before coming to rest will be ($a$ and $b$ are constants)
→A galvanometer can be converted into an ammeter by connecting
A particle is executing $SHM$ of amplitude $A,$ about the mean position $x = 0.$ Which of the following cannot be a possible phase difference between the positions of the particle at $x = +\,A/2$ and $x = - A/\sqrt {2} .$
→A block of mass $m$ rests on a platform. The platform is given up and down $SHM$ with an amplitude $d$ . What can be the maximum frequency so that the block never leaves the platform
→If the focal length of objective and eye lens are $1.2\, cm$ and $3\, cm$ respectively and the object is put $1.25 \,cm$ away from the objective lens and the final image is formed at infinity. The magnifying power of the microscope is
→Which of the following four alternatives is not correct We need modulation
Consider a $\beta$ decay reaction
→${}_1^3H \to {}_2^3He + {e^{ - 1}} + \bar v$
Atomic mass of ${}_1^3H$and ${}_2^3He$ are $3.016050\,u$ and $3.016030\,u$. Find the maximum possible energy of electron ....... $MeV$
A thin plano-convex lens acts like a concave mirror of focal length $0.2 m$ when silvered from its plane surface. The refractive index of the material of the lens is $1.5.$ The radius of curvature of the convex surface of the lens will be.......$m$
→A length $L$ of wire carries a steady current $I$. It is bent first to form a circular plane coil of one turn. The same length is now bent more sharply to give a double loop of smaller radius. The magnetic field at the centre caused by the same current is
→