TS EAMCET · Physics · Magnetic Effects of Current
A particle of mass \(m\) and charge \(Q\) moving with a speed \(v\) in a circular path of radius \(R\) has magnetic moment \(\mu\). If the mass of the particle is doubled and maintains the same speed while revolving in the same circular path, then the magnetic moment will be
- A doubled
- B halved
- C tripled
- D unchanged
Answer & Solution
Correct Answer
(D) unchanged
Step-by-step Solution
Detailed explanation
Magnetic moment associated with moving charge on circular path is given as, \(\mu=\frac{Q v R}{2} \Rightarrow \mu \propto Q v R\) Clearly \(\mu\) doesn't depend on mass of charged particle and also if \(v=\) unchanged then \(\mu=\) uncharged.
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
- The radius of the first orbit of hydrogen is \(\mathrm{r}_{\mathrm{H}}\), and the energy in the ground state is - \(13.6 \mathrm{eV}\). Considering a \(\mu^{-}\)-particle with a mass \(207 m_e\) revolving round a proton as in hydrogen atom, the energy and radius of proton and \(\mu^{-}\)- combination respectively in the first orbit are (assume nucleus to be stationary)TS EAMCET 2014 Hard
- If the moment of inertia of a thin circular ring about an axis passing through its edge and perpendicular to its plane is \(I\), then the moment of inertia of the ring about its diameter isTS EAMCET 2025 Medium
- In a Zener diode,TS EAMCET 2020 Easy
- A vehicle starts moving in a straight line with an acceleration, \(a=4 \mathrm{~m} / \mathrm{s}^2\), with initial velocity equal to zero. After accelerating for time \(t_1\), the vehicle moves uniformly and for time \(t_2\), the vehicle finally decelerates for time \(t_1\) eventually coming to a stop. The total time taken during the motion is \(10 \mathrm{~s}\) and the average velocity during the motion is \(5.1 \mathrm{~m} / \mathrm{s}\). The time taken by the vehicle during acceleration isTS EAMCET 2018 Medium
- A simple pendulum of length \(1 \mathrm{~m}\) and having a bob of mass \(100 \mathrm{~g}\) is suspended in a car, moving on a circular track of radius \(100 \mathrm{~m}\) with uniform speed \(10 \mathrm{~m} / \mathrm{s}\). If the pendulum makes small oscillation in a radial direction about its equilibrium position, then its time period can be given by \(\mathrm{T}=2 \pi / \alpha^{1 / 4}\). The value of \(\alpha\) is [Take \(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2\) ] [Take g = 10 m/s2]TS EAMCET 2022 Medium
- An ideal gas goes through a process \(A \rightarrow B \rightarrow C \rightarrow A\) cycle. The process, \(A \rightarrow B\) is adiabatic. Calculate the work done in the process \(A \rightarrow B\).
TS EAMCET 2021 Hard
More PYQs from TS EAMCET
- A thin prism of angle \(6^{\circ}\) made of glass of refractive index 1.5 is combined with another prism made of refractive index 1.75 to produce dispersion without deviation. Then, the angle of the second prism isTS EAMCET 2020 Easy
- Assertion (A) Electromagnetic force is enormously strong as compared to gravitational force. Yet, gravity dominates in the large-scale phenomena (e.g. formation of galaxies). Reason \((R)\) Existence of positive and negative charges make matter mostly electrically neutral. Which of the following is true?TS EAMCET 2018 Easy
- For an aperture of \(5 \times 10^{-3} \mathrm{~m}\) and a monochromatic light of wavelength \(\lambda\), the distance for which ray optics becomes a good approximation is 50 m, then \(\lambda=\)TS EAMCET 2025 Medium
- The heat energy required convert \(10 \mathrm{~kg}\) of ice at \(-10^{\circ} \mathrm{C}\) into water at \(0^{\circ} \mathrm{C}\) is (specific heat capacity of ice \(=0.5 \mathrm{cal}\) \(\mathrm{g}^{-1}\) and latent heat of fusion of ice \(=80 \mathrm{cal} \mathrm{g}^{-1}\) )TS EAMCET 2023 Medium
- If the distances of the object and its real image from the principal focus of a concave mirror are 16 cm and 9 cm respectively, then the focal length of the mirror isTS EAMCET 2025 Medium
- Calculate the wavelength of the \(k_a\) line for \(z=31\), when \(a=5 \times 10^7 \mathrm{~Hz}^{1 / 2}\) for a characteristic X-ray spectrum.TS EAMCET 2011 Medium