An electron of mass $$0.90$$ x $$10-30$$ kg under the action of a magnetic field moves in a circle of $$2.0$$ cm radius at a speed of $$3.0$$ x $$106$$ $$ms-1$$. If a proton of mass $$1.8$$ x $$10-27$$ kg was to move in a circle of the same radius in the same magnetic field, then its speed will be

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Infinity Learn · Accepted Answer

$$Bqv=mv2r$$ or $$Bqr=mvFor$$ electron as well as proton B is the same, r is the same and numerically charge  is same; therefore mv is constant.$$meve=mpvp$$ or $$vp=mempve$$ or   $$vp=0.90$$×$$10-301.8$$×$$10-273.0$$×$$106=1.5$$×$$103$$ $$m/s$$

An electron of mass 0.90 x 10^-30 kg under the action of a magnetic field moves in a circle of 2.0 cm radius at a speed of 3.0 x 10⁶ ms^-1. If a proton of mass 1.8 x 10^-27 kg was to move in a circle of the same radius in the same magnetic field, then its speed will be

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An electron of mass 0.90 x 10-30 kg under the action of a magnetic field moves in a circle of 2.0 cm radius at a speed of 3.0 x 106 ms-1. If a proton of mass 1.8 x 10-27 kg was to move in a circle of the same radius in the same magnetic field, then its speed will be

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

An electron of mass 0.90 x 10^-30 kg under the action of a magnetic field moves in a circle of 2.0 cm radius at a speed of 3.0 x 10⁶ ms^-1. If a proton of mass 1.8 x 10^-27 kg was to move in a circle of the same radius in the same magnetic field, then its speed will be