This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
Here are the solutions to the questions: i. The rate of change of potential between two points with respect to distance is the definition of the electric field strength. Mathematically, the electric field E is the negative gradient of the electric potential V, i.e., E = - V. In one dimension, this simplifies to E = -(dV)/(dr). B) electric field ii. In a thermocouple, the thermoelectric electromotive force (e.m.f.) varies with temperature. It increases with temperature, reaches a maximum value at a specific temperature, and then decreases, eventually becoming zero and reversing its direction. The temperature at which the thermoelectric e.m.f. becomes maximum is known as