TS EAMCET · Physics · Current Electricity
A resistance network is connected to a battery as shown in the figure below. If the internal resistance of the battery is \(5 \Omega\), then the value of \(R\) (in \(\Omega\) ) for maximum power delivered to the network is
- A 2
- B 4
- C 5
- D 6
Answer & Solution
Correct Answer
(A) 2
Step-by-step Solution
Detailed explanation
Given is an unbalanced Wheatstones' bridge, in which current distribution will be as shown Now in loop \(A B C A\), using KVL we have,…
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
- An observer moves towards a stationary source of sound with a speed \(\frac{1}{5} t h\) that of sound. The frequency of the sound emitted by the source is \(f\). The apparent frequency recorded by the observer isTS EAMCET 2023 Easy
- The position of an object moving along \(X\)-axis is given by \(x=\alpha+\beta t^2\), where \(\alpha\) and \(\beta\) are constants with appropriate dimensions and \(t\) is time in seconds. The average velocity between \(t=2 \mathrm{~s}\) and \(4 \mathrm{~s}\) is \(12 \mathrm{~m} / \mathrm{s}\). If \(\alpha=8 \mathrm{~m}\), then the value of \(\beta\) isTS EAMCET 2020 Easy
- A flashlight of intensity \(9 \mathrm{~W} / \mathrm{cm}^2\) illuminates a perfectly reflective surface of area \(300 \mathrm{~cm}^2\). The average force exerted on the surface due to the incident light photons isTS EAMCET 2019 Easy
- A cubical block of wood, of length \(10 \mathrm{~cm}\), floats at the interface between oil of density \(800 \mathrm{~kg} / \mathrm{m}^3\) and water. The lower surface of the block is \(1.5 \mathrm{~cm}\) below the interface. If the depth of water is \(10 \mathrm{~cm}\) below the interface and oil is upto \(10 \mathrm{~cm}\) above the interface then the difference in pressure at the lower and the upper face of the wooden block is (Assume density of water, \(\rho=1000 \mathrm{~kg} / \mathrm{m}^3\) and acceleration of gravity, \(g=10 \mathrm{~m} / \mathrm{s}^2\) )
TS EAMCET 2019 Medium - Two objects of masses \(200 \mathrm{~g}\) and \(500 \mathrm{~g}\) possess velocities \(10 \hat{\mathbf{i}} \mathrm{m} / \mathrm{s}\) and \(3 \hat{\mathbf{i}}+5 \hat{\mathbf{j}} \mathrm{m} / \mathrm{s}\) respectively. The velocity of their centre of mass in \(\mathrm{m} / \mathrm{s}\) is :TS EAMCET 2003 Easy
- A particle of mass \(\mathrm{m}\) and charge \(\mathrm{q}\) travelling with a velocity \(v\) along the \(\mathrm{x}\)-axis enters a uniform electric field \(\overrightarrow{\mathrm{E}}\) directed along the y-axis. What will be the trajectory of the particle?TS EAMCET 2022 Medium
More PYQs from TS EAMCET
- Two tangent galvanometers \(A\) and \(B\) have coils of radii \(8 \mathrm{~cm}\) and \(16 \mathrm{~cm}\) respectively and having resistance of \(8 \Omega\) each. They are connected in parallel with a cell of emf \(4 \mathrm{~V}\) and negligible internal resistance. The deflections produced in the tangent galvanometers \(A\) and \(B\) are \(30^{\circ}\) and \(60^{\circ}\), respectively. If \(A\) has 2 turns, then \(B\) must haveTS EAMCET 2020 Medium
- A segment of wire vibrates with a fundamental frequency of \(450 \mathrm{~Hz}\) under a tension of \(9 \mathrm{~kg} \mathrm{wt}\). Then tension at which the fundamental frequency of the same wire becomes \(900 \mathrm{~Hz}\) isTS EAMCET 2007 Easy
- A ball moving with a velocity \(v\), collides head on with a stationary second ball of same mass. After the collision, the velocity of the first ball is reduced to \(0.15 v\). The kinetic energy of the system is decreased nearly byTS EAMCET 2018 Easy
- A car travelling at \(15 \mathrm{~m} / \mathrm{s}\) overtake another car travelling at \(10 \mathrm{~m} / \mathrm{s}\). Assuming, each car is \(4 \mathrm{~m}\) long. What is the time taken during the overtake?TS EAMCET 2020 Easy
- It is found that a non-zero current element is unable to produce any magnetic field at a particular point. Then the angle between the current element and the position vector of that point with respect to the current element isTS EAMCET 2023 Hard
- Consider a metal ball of radius \(r\) moving at a constant velocity \(v\) in a wiform magnetic field of induction \(\bar{B}\). Assuming that the direction of velocity forms an angle \(\alpha\) with the direction of \(\bar{B}\), the maximum potential difference between points on the ball isTS EAMCET 2017 Hard