JEE Mains · Physics · STD 12 - 3. current electricity
The difference of temperature in a material can convert heat energy into electrical energy. To harvest the heat energy, the material should have _________.
- A high thermal conductivity and high electrical conductivity
- B low thermal conductivity and low electrical conductivity
- C high thermal conductivity and low electrical conductivity
- D low thermal conductivity and high electrical conductivity
Answer & Solution
Correct Answer
(D) low thermal conductivity and high electrical conductivity
Step-by-step Solution
Detailed explanation
Material should have low thermal conductivity and high electrical conductivity.
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
- With increasing biasing voltage of a photodiode, the photocurrent magnitudeJEE Mains 2020 Medium
- A hollow sphere is rolling on a plane surface about its axis of symmetry. The ratio of rotational kinetic energy to its total kinetic energy is \(\frac{x}{5}\). The value of \(x\) is _______.JEE Mains 2024 Hard
- Two point charges \(q_1=3\,\mu C\) and \(q_2=-4\,\mu C\) are placed at points \((2\hat{i}+3\hat{j}+3\hat{k})\) and \((\hat{i}+\hat{j}+\hat{k})\) respectively. Force on charge \(q_2\) is ________ N. \(\left(\text{Take } \dfrac{1}{4\pi\epsilon_0} = 9\times 10^9 \text{ SI Units}\right)\)JEE Mains 2026 Medium
- A series \(LR\) circuit is connected to an ac source of frequency \(\omega \) and the inductive reactance is equal to \(2R\). A capacitance of capacitive reactance equal to \(R\) is added in series with \(L\) and \(R\). The ratio of the new power factor to the old one isJEE Mains 2013 Hard
- A transparent block A having refractive index \(\mu=1.25\) is surrounded by another medium of refractive index \(\mu=1.0\) as shown in figure. A light ray is incident on the flat face of the block with incident angle \(\theta\) as shown in figure. What is the maximum value of \(\theta\) for which light suffers total internal reflection at the top surface of the block?
JEE Mains 2025 Medium - Moment of inertia about an axis \(AB\) for a rod of mass \(40\) kg and length \(3\) m is same as that of a solid sphere of mass of \(10\) kg and radius \(R\) about an axis parallel to \(AB\) axis with separation of \(3\) m as shown in figure below. The value of \(R\) is given as \(\sqrt{\dfrac{\alpha}{2}}\). The value of \(\alpha\) is _______.
JEE Mains 2026 Medium
More PYQs from JEE Mains
- A small bob A of mass m is attached to a massless rigid rod of length 1m pivoted at point P and kept at an angle of \( 60^{\circ} \) with vertical as shown in figure. At distance of 1m below point P, an identical bob B is kept at rest on a smooth horizontal surface that extends to a circular track of radius R as shown in figure. If bob B just manages to complete the circular path of radius R upto a point Q after being hit elastically by both A, then radius R is ___________m.
JEE Mains 2026 Hard - In the given circuit, the terminal potential difference of the cell is _______.
JEE Mains 2024 Hard - A lift of mass \(1600\) kg is supported by thick iron wire. If the maximum stress which the wire can withstand is \(4 \times 10^8\) N/m\(^2\) and its radius is \(4\) mm, then maximum acceleration the lift can take is _______ m/s\(^2\). (take \(g = 10\) m/s\(^2\) and \(\pi = 3.14\))JEE Mains 2026 Medium
- If the coefficents of \({x^3}\) and \({x^4}\) in the expansion of \(\left( {1 + ax + b{x^2}} \right){\left( {1 - 2x} \right)^{18}}\) in powers of \(x\) are both zero, then \( (a,b) \) is equal toJEE Mains 2014 Hard
- If the kinetic energy of a moving body becomes four times its initial kinetic energy, then the percentage change in its momentum will be \(...\%\)JEE Mains 2021 Medium
- Let the population ofrabbits surviving at time \(t\) be governed by the differential equation \(\frac{{dp\left( t \right)}}{{dt}} = \frac{1}{2}p\left( t \right) - 200\) . If \( p(0)=100 \) ,then \(p(t)\) equals :JEE Mains 2014 Hard