A charge $Q$ is moving $\overrightarrow{dl}$ distance in the magnetic field $\overrightarrow{ B }$. Find the value of work done by $\overrightarrow{ B }$.
JEE MAIN 2021, Medium
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
- 1A conducting ring of mass $2\,\, kg$ and radius $0.5\,\ m$ is placed on a smooth horizontal plane. The ring carries a current $i = 4A. A$ horizontal magnetic field $B = 10T$ is switched on at time $t = 0$ as shown in figure. The initial angular acceleration of the ring will beView Solution
- 2A rod of length $l$ having uniformly distributed charge $Q$ is rotated about one end with constant frequency $'f'.$ Its magnetic momentView Solution
- 3A current $i$ is flowing in a straight conductor of length $L$. The magnetic induction at a point distant $\frac{L}{4}$ from its centre will beView Solution
- 4Which of the following graphs shows the variation of magnetic induction $B$ with distance $r$ from a long wire carrying currentView Solution
- 5A current carrying rectangular loop PQRS is made of uniform wire. The length $PR = QS =5\,cm$ and $PQ = RS =100\,cm$. If ammeter current reading changes from I to $2 I$, the ratio of magnetic forces per unit length on the wire $P Q$ due to wire RS in the two cases respectively $f_{ PQ }^{ I }: f_{ PQ }^{2 I }$ is :View Solution
- 6View SolutionA loop of flexible wire of irregular shape carrying current is placed in an external magnetic field. Identify the effect of the field on the wire.
- 7View SolutionIf an electron and a proton having same momenta enter perpendicular to a magnetic field, then
- 8A long straight wire carries a current of $\pi \,amp.$ The magnetic field due to it will be $5 \times {10^{ - 5}}{\rm{ }}\,weber/{m^{\rm{2}}}$ at what distance from the wire $[{\mu _o} = $ permeability of air]View Solution
- 9$OABC$ is a current carrying square loop an electron is projected from the centre of loop along its diagonal $AC$ as shown. Unit vector in the direction of initial acceleration will beView Solution
- 10In hydrogen atom, an electron is revolving in the orbit of radius $0.53\,{\mathop A\limits^o }$ with $6.6 \times {10^{15}}$ $rotations/second$. Magnetic field produced at the centre of the orbit is.......$wb/{m^2}$View Solution