AP EAMCET · PHYSICS · Magnetic Effects of Current
The distance moved by a charged particle along the magnetic field (the component of velocity is parallel to the magnetic field) in one rotation is given by ( \(\mathrm{m}\) - mass of the particle, \(\mathrm{v}\) - velocity of the particle, \(\mathrm{q}\) charge of the particle, B - magnetic field)
- A \(\frac{2 \pi m v}{q B}\)
- B \(\frac{\pi \mathrm{mv}}{\mathrm{qB}}\)
- C \(\frac{4 \pi \mathrm{mv}}{\mathrm{qB}}\)
- D \(\frac{2 \pi m v}{q B^2}\)
Answer & Solution
Correct Answer
(A) \(\frac{2 \pi m v}{q B}\)
Step-by-step Solution
Detailed explanation
If the velocity component \(\mathrm{v}_{\mathrm{y}}\) is perpendicular to the magnetic field \(\mathrm{B}\), the magnetic force acts like a centripetal force \(\mathrm{qv}_{\mathrm{y}} \mathrm{B}\).…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- On getting reflected at a surface, the intensity of sound is found to be decreased by \(20 \%\). If \(A\) be the amplitude of the incident sound waves, then the amplitude of reflected sound waves isAP EAMCET 2020 Hard
- The maximum height attained by projectile is increased by \(10 \%\) by keeping the angle of projection constant. What is the percentage increase in the time of flight?AP EAMCET 2024 Hard
- If \(\vec{E}\) and \(\vec{B}\) are the electric and magnetic field vectors of an electromagnetic wave, then the direction of propagation of the electromagnetic wave isAP EAMCET 2023 Easy
- A thin magnetic iron rod of length \(30 \mathrm{~cm}\) is suspended in a uniform magnetic field. Its time period of oscillation is \(4 \mathrm{~s}\). It is broken into three equal parts. The time period in seconds of oscillation of one part when suspended in the same magnetic field isAP EAMCET 2002 Medium
- is the vertical displacement of a ball which is moving in vertical plane. Then the maximum height that the ball can reach is,AP EAMCET 2022 Hard
- If the values of the temperature of a body in Fahrenheit and Celcius scales are in the ratio of \(13: 5\), then the temperature of the body isAP EAMCET 2025 Easy
More PYQs from AP EAMCET
- Which of the following elements are not regarded as transition elements?AP EAMCET 2022 Easy
- Two blocks of masses m and 2 m are connected by a massless string which passes over a fixed frictionless pulley. If the system of blocks is released from rest, the speed of the centre of mass of the system of two blocks after a time of 5.4 s is
(Acceleration due to gravity \(=10 \mathrm{~ms}^{-2}\) )AP EAMCET 2024 Medium - The chemical entities present in thermosphere of the atmosphere areAP EAMCET 2009 Easy
- The coefficient of variation and standard deviation of an ungrouped data are 60 and 21 respectively. If 15 is added to every observation of the data, then the coefficient of variation of the new data isAP EAMCET 2019 Medium
- A ball at point ' O ' is at a horizontal distance of 7 m from a wall. On the wall a target is set at point ' C '. If the ball is thrown from ' O ' at an angle \(37^{\circ}\) with horizontal aiming the target ' \(C\) '. But it hits the wall at point ' \(D\) ' which is at a vertical distance ' \(y_0\) ' below C. If the initial velocity of the ball is \(15 \mathrm{~ms}^{-1}\). Find \(y_0\left(\right.\) given \(\left.\cos 37^{\circ}=\frac{4}{5}\right)\)
AP EAMCET 2024 Hard - If \(f_n(x)=\log \log \log \ldots \log x \quad(\log\) is repeated \(n\)-times), then
\(\int\left(x f_1(x) f_2(x) \ldots f_n(x)\right)^{-1} d x\) is equal toAP EAMCET 2010 Hard