An electron, moving in a uniform magnetic field of induction of intensity $\vec B,$ has its radius directly proportional to
Easy
Download our app for free and get started
(c) $r = \frac{{mv}}{{qB}}$ $==>$ $r \propto v$
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1Three long, straight parallel wires carrying current, are arranged as shown in figure. The force experienced by a $25\, cm$ length of wire $C$ isView Solution
- 2View SolutionThe magnetic field near a current carrying conductor is given by
- 3A rectangular loop of wire, supporting a mass $m$, hangs with one end in a uniform magnetic field $\vec B$ pointing into the plane of the paper. $A$ clockwise current is set up such that $i> mg/Ba,$ where $a$ is the width of the loop. ThenView Solution
- 4A current of $10\,A$ is passing through a long wire which has semicircular loop of the radius $20\,cm$ as shown in the figure. Magnetic field produced at the centre of the loop isView Solution
- 5A particle having a mass of $10^{- 2} \,kg$ carries a charge of $5 \times 10^{-8}\, C.$ The particle is given an initial horizontal velocity of $10^5\, m/s $ in the presence of electric field $E$ and magnetic field $B.$ To keep the particle moving in a horizontal direction, it is necessary thatView Solution
$(1)$ $\vec B$ should be perpendicular to the direction of velocity and $\vec E$ should be along the direction of velocity$(2)$ Both $\vec B$ and $\vec E$ should be along the direction of velocity$(3)$ Both $\vec B$ and $\vec E$ are mutually perpendicular and perpendicular to the direction of velocity.$(4)$ $\vec B$ should be along the direction of velocity and $\vec E$ should be perpendicular to the direction of velocityWhich one of the following pairs of statements is possible? - 6View SolutionIf the radius of a coil is halved and the number of turns doubled, then the magnetic field at the centre of the coil, for the same current will
- 7A uniformly charged dielectric ring rotating with constant angular velocity $'\omega '$ about its geometrical axis then it producesView Solution
- 8A galvanometer coil has a resistance of $12\,\Omega $ and meter shows full scale deftection for a current of $3\,mA$ then to convert it into a voltmeter of range $0\,-18\, V$ a resistance should be addedView Solution
- 9View SolutionA thin hollow copper pipe carries direct current than which is incorrect
- 10The magnetic field existing in a region is given by $\vec B\, = \,{B_0}\,\left( {5 + \frac{x}{l}} \right)\,\hat K$ A square loop of edge $l$ and carrying a current $i$ is placed with its edges parallel to $x-y$ axes. Find the magnitude of the net magnetic force experienced by the loopView Solution
