TS EAMCET · Physics · Current Electricity
In a meter bridge experiment the ratio of the left gap resistance to the right gap resistance is \(2: 3\). The balance length from left end is
- A \(20 \mathrm{~cm}\)
- B \(60 \mathrm{~cm}\)
- C \(50 \mathrm{~cm}\)
- D \(40 \mathrm{~cm}\)
Answer & Solution
Correct Answer
(C) \(50 \mathrm{~cm}\)
Step-by-step Solution
Detailed explanation
From meter bridge principle \[ \begin{aligned} & \frac{X}{R}=\frac{l_1}{100-l_1} \\ & \frac{3}{3}=\frac{l_1}{100-l_1} \Rightarrow 300-31_1=31_1 \\ & 30 \mathrm{i}=6 l_1 \Rightarrow 1_1=\frac{300}{6}=50 \mathrm{~cm} \end{aligned} \]
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 plane of a circular coil of resistance \(7.5 \Omega\) is placed perpendicular to a uniform magnetic field. The flux \(\phi\) (in weber) through the coil varies with time \(t\) (in second) as \(\phi=2 t^2+3 t-2\). The induced power in the coil at time \(t=3 s\) isTS EAMCET 2025 Medium
- The ends of an element of zinc wire are kept at a small temperature difference \(\Delta T\) and a small current \((I)\) is passed through the wire. Then, the heat developed per unit timeTS EAMCET 2013 Easy
- A wide cylindrical vessel 50 cm in height is filled with water and rests on a table. Assuming the viscosity to be negligible, find at what height from the bottom of the vessel a small hole should be made for the water jet coming out of it to hit the surface of the table at the maximum horizontal distance from the vessel.TS EAMCET 2022 Easy
- The susceptibility of \(\mathrm{Al}\) is \(2 \times 10^{-5}\). The percent increase in the magnetic field when the space within a current carrying torroid to filled with \(\mathrm{Al}\) isTS EAMCET 2021 Easy
- A car starts at time \(t=0\) from an initial speed of \(10 \mathrm{~m} / \mathrm{s}\) and accelerates uniformly with \(2 \mathrm{~m} / \mathrm{s}^2\) on a straight road for time \(0 \leq t \leq 10 \mathrm{~s}\). Let \(S_1\) and \(S_2\) be the distance covered by the car in time \(3 \leq t \leq 4 s\) and \(4 \leq t \leq 5 s\) respectively. The ratio \(\frac{S_2}{S_1}\) isTS EAMCET 2022 Easy
- A gas is suddenly compressed such that its absolute temperature is doubled. If the ratio of the specific heat capacities of the gas is 1.5, then the percentage decrease in the volume of the gas isTS EAMCET 2025 Medium
More PYQs from TS EAMCET
- The displacement of a particle executing simple harmonic motion is given by \(x=2 \cos (t)\) where \(t\) is the time in seconds then the time period of the particle isTS EAMCET 2023 Easy
- Force is given by the expression, \(F=A \cos (B x)+C \cos (D t)\), where \(x\) is displacement and \(t\) is time. The dimension of \(\left(\frac{D}{B}\right)\) is same as that ofTS EAMCET 2016 Easy
- Two similar coils which are separated by \(2 \mathrm{~m}\) having radius of \(1 \mathrm{~m}\) and number of turns 80 have a common axis. Calculate the strength of magnetic field in microtesla at a point midway between them on their common axis when a current is \(0.2\)TS EAMCET 2020 Medium
- An office room contains about 2000 moles of air. The change in the internal energy of this much air when it is cooled from \(34^{\circ} \mathrm{C}\) to \(24^{\circ} \mathrm{C}\) at a constant pressure of \(1.0 \mathrm{~atm}\) is [Use \(\gamma_{\text {air }}=1.4\) and whiversal gas constant \(=8.314 \mathrm{~J} / \mathrm{mol}-\mathrm{K}]\)TS EAMCET 2017 Easy
- A particle leaves the origin with initial velocity and a constant acceleration . The position vector of particle, when it reaches its maximum -coordinate, isTS EAMCET 2021 Hard
- Photons of energy 4.5 eV are incident on a photosensitive material of work function 3 eV. The de Broglie wavelength associated with the photoelectrons emitted with maximum kinetic energy is nearlyTS EAMCET 2025 Medium