A temperature difference can generate e.m.f. in some materials. Let S be the e.m.f…
Physics · JEE Advanced · NTA Exams — Physics and Measurement
A temperature difference can generate e.m.f. in some materials. Let S be the e.m.f. produced per unit temperature difference between the ends of a wire, σ the electrical conductivity and k the thermal conductivity of the material of the wire. Taking M, L, T, I and K as dimensions of mass, length, time, current and temperature, respectively, the dimensional formula of the quantity \(Z=\frac{S^{2} \sigma}{\kappa}\) is
- [M0L0T0I0K0]
- [M0L0T0I0K–1]
- [M1L2T–2I–1K–1]
- [M1L2T–4I–1K–1]
Answer
(A) [M 0 L 0 T 0 I 0 K 0 ]
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The lenght , breadth b and thickness t of a block are measured with the help of a metre scale. Given l =…
- In a system of units if force (F), acceleration (A) and time (T) are taken as fundamental units then which of…
- If A =2 i + j + k and B = i + j + k are two vectors, then the unit vector
- The value of universal gas constant is R = 8.3 J/K – mol. The value of R in atmosphere litre per kelvin mol
- Using the expression 2 d sin q = l , one calculates the values of d by measuring the corresponding angles q…
- In the formula X = 3 YZ 2 , X and Z have dimensions of capacitance and magnetic induction respectively. What…
- Which of the following combinations have the dimensions of time? L, C, R represent inductance, capacitance…
- The dimensions of the quantities in one (or more) of the following pairs are the same. Identify the pair(s).
More Physics and Measurement questions · Browse all practice questions