TS EAMCET · Physics · Current Electricity
A uniform conductor of resistance \(R\) is cut into 20 equal pieces. Half of them are joined in series and the remaining half of them are connected in parallel. If the two combinations are joined in series, the effective resistance of all the pieces is
- A \(R\)
- B \(\frac{R}{2}\)
- C \(\frac{101 R}{200}\)
- D \(\frac{201 R}{200}\)
Answer & Solution
Correct Answer
(C) \(\frac{101 R}{200}\)
Step-by-step Solution
Detailed explanation
Resistance of each piece \(=\frac{R}{20} \Omega\) Equivalent resistance of 10 such pieces connected in series \[ R_1=10 \times \frac{R}{20}=\frac{R}{2} \] Similarly, equivalent resistance of 10 such pieces connected in parallel…
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
- In the circuit given below, the capacitor is charged by closing the switch and opening the switch . After charging, the switch is opened and is closed, then the maximum current in the circuit
TS EAMCET 2018 Easy - The net work done by an ideal gas going through the cycle as shown in the diagram below is
TS EAMCET 2022 Easy - A \(100 \mathrm{~W}\) tungsten light bulb has a resistance of \(250 \Omega\) when it as turned ON and \(25 \Omega\) when turned OFF. The ambient room temperature is \(25^{\circ} \mathrm{C}\). Find the temperature of the filament when the bulb is turned ON. \(\left(\right.\) Let \(\left.\alpha_{\text {tungsten }}=4.5 \times 10^{-3} /{ }^{\circ} \mathrm{C}\right)\)TS EAMCET 2019 Easy
- The block starts from rest as shown in the figure. Find the work done by force of \(10 \mathrm{I}\) and friction in the time 0 to \(4 \mathrm{~s}\). [Take, \(g=10 \mathrm{~m} / \mathrm{s}^2\) ]
TS EAMCET 2020 Easy - A Carnot engine \(C_1\) operates between temperature \(T_1\) and \(T_2\left(T_1>T_2\right)\). A second Carnot engine \(C_2\) uses all the heat rejected by the engine \(C_1\) and operates between temperature \(T_2\) and \(T_3\) (where \(T_2>T_3\) ). The efficiency of this combined \(\left(C_1\right.\) and \(C_2\) together) engine isTS EAMCET 2020 Easy
- The nuclear forces areTS EAMCET 2020 Easy
More PYQs from TS EAMCET
- A fully charged capacitor has a capacitance \(C\). It is discharged through a small coil of resistance wire, embedded in a block of specific heat \(s\) and mass \(m\) under thermally isolated conditions. If the temperature of the block is raised by \(\Delta T\), the potential difference \(V\) across the capacitor initially isTS EAMCET 2011 Medium
- A metre stick is balanced on a knife edge at its centre. When four coins, each of mass \(2 \mathrm{~g}\) are put one on top of the other at \(10.0 \mathrm{~cm}\) mark, the stick it found to be balanced at \(46.0 \mathrm{~cm}\) mark. The mass of the metre stick isTS EAMCET 2022 Easy
- A constant voltage of \(25 \mathrm{~V}\) is applied to a series \(L-R\) circuit at \(t=0\), by closing a switch. What is the potential difference across the resistor and the inductor at time \(t=0\) ?TS EAMCET 2011 Medium
- Normally a capacitor is connected across the output terminals of a rectifier toTS EAMCET 2024 Easy
- Electron microscope is based on the principle ofTS EAMCET 2016 Easy
- Identify the correct option.TS EAMCET 2019 Easy