MHT CET · Physics · Current Electricity
The deflection in a moving coil galvanometer is reduced to half when it is shunted with ' \(X^{\prime} \Omega\) coil. The relation between ' \(\mathrm{X}^{\prime}\) and resistance of galvanometer ' \(\mathrm{G}^{\prime}\) is
- A \(2 X=G\)
- B \(4 X=G\)
- C \(X=2 G\)
- D \(X=G\)
Answer & Solution
Correct Answer
(D) \(X=G\)
Step-by-step Solution
Detailed explanation
\(\mathrm{I}_{\mathrm{G}} \cdot \mathrm{G}=\mathrm{I}_{\mathrm{x}} \cdot \mathrm{X}\)
The total current gets equally divided between the galvanometer and the shunt.
\(\therefore \mathrm{I}_{\mathrm{G}}=\mathrm{I}_{\mathrm{X}}\)
The total current gets equally divided between the galvanometer and the shunt.
\(\therefore \mathrm{I}_{\mathrm{G}}=\mathrm{I}_{\mathrm{X}}\)
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
- By increasing the aperture of the objective lens, wavelength of light, focal length
of the objective lens and the resolving power of an astronomical telescope
respectivelyMHT CET 2020 Easy - When a galvanometer is shunted by a resistance ' S ', its current capacity increases ' \(n\) ' times. If the same galvanometer is shunted by another resistance \(\mathrm{S}^{\prime}\), its current capacity increases to \(\mathrm{n}^{\prime}\). The value of \(n^{\prime}\) in terms of \(n, S\) and \(S^{\prime}\) isMHT CET 2024 Easy
- The pressure on a square plate is measured by measuring the force acting on the plate and length of the sides of the plate. The maximum error in the measurement of force and length are respectively \(4 \%\) and \(2 \%\), the percentage error in the measurement of pressure isMHT CET 2025 Easy
- If the ratio of the intensities of two waves producing interference is \(49: 16\), then the ratio of the resultant maximum intensity to minimum intensity will beMHT CET 2022 Medium
- The polarising angle for transparent medium is \(\theta, v\) is the speed of light in that medium. Then the relation between \(\theta\) and \(v\) is ( \(c=\) velocity of light in air)MHT CET 2017 Easy
- A small ball of mass \(M\), radius \(R\) and density \(\rho\) moves with terminal velocity through a container filled with glycerine of density \(\sigma\). The viscous force acting on the ball is ( \(g=\) gravitational acceleration)MHT CET 2022 Medium
More PYQs from MHT CET
- The solution of the equation \(\tan ^{-1}(1+x)+\tan ^{-1}(1-x)=\frac{\pi}{2}\) isMHT CET 2023 Easy
- Which of the following compounds is formed as major product in the following reaction.
\(\text { 2-methylbut-2-ene } \xrightarrow[\text { Peroxide }]{\mathrm{HBr}} \text { Product }\)MHT CET 2025 Medium - If the angle of dip at places \(\mathrm{A}\) and \(\mathrm{B}\) are \(30^{\circ}\) and \(45^{\circ}\) respectively, the ratio of horizontal component of earth's magnetic field at \(A\) to that at \(B\) will be
\([\sin 45^{\circ}=\cos 45^{\circ}=\frac{1}{\sqrt{2}}, \quad \sin \frac{\pi}{6}=\frac{1}{2},\) \(\quad \cos \frac{\pi}{6}=\frac{\sqrt{3}}{2}]\)MHT CET 2020 Easy - The coefficient of thermal conductivity of a rod depends on itsMHT CET 2022 Easy
- Choose the CORRECT statement from the following.
(b)ewster's angle for a transparent medium isMHT CET 2020 Easy - Two parallel plates separated by ' \(\mathrm{d}\) ' \(\mathrm{mm}\) are kept at potential difference of ' \(V\) ' volt. A particle of mass ' \(m\) ' and charge ' \(q\) ' enters in it with some velocity. The acceleration of the particle will beMHT CET 2022 Medium