When the hot and cold junctions of a thermocouple are interchanged the

1.	When the hot and cold junctions of a thermocouple are interchanged the theromo-emf
A.	Becomes zero
B.	Becomes double
C.	Remains same
D.	Changes sign
Answer» E.

Discussion

No Comment Found

Related MCQs

Consider the following statements An ordinary light bulb has a rather short life because the 1. Filament wire is not uniform2. Bulb cannot be evacuated completely 3. Wires supporting the filament melt at high temperatures.Which of the above statements are correct?
Consider the following statements regarding a motor car battery1. The voltage usually 12 V2. Electrolyte used in hydrochloric acid3. Electrodes are lead and copper4. Capacity is expressed in ampere-hourWhich of the above statements are correct?
Consider the following statements1. An isolated electric charge exist, but an isolated magnetic monopole does not exist.2. Electric lines of force are not closed, but magnetic lines of force are closedWhich of the statements given above is / are correct?
The SI unit of pole strength is
What is the difference between a CFL and an LED LAMP ?1. To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semi-conductor material.2. The average life span of a CFL is much longer than of an LED lamp.3. A CFL is LESS energy-efficient as compared to an LED lamp.Which of the statements given above is / are correct ?
Assertion (A) : In our houses, the current in AC electricity line changes direction 60 times per second.Reason (R): The frequency of alternating voltage supplied is 50 Hz.
Consider the following statements At the present level of technology available in India, Solar energy can be conveniently used to1. Supply hot water to residential buildings2. Supply water for minor irrigation projects3. Provide street lighting4. Electrify a cluster of villages and small towns
Consider the following statements regarding electric fuse wire1. If has low melting point2. It has very high specific resistance3. It is connected in parallel with the electric circuit Which of the statements given above is / are correct?
Au, Ag, Cu, Zn, Sb, Bi, H2O and air are examples of
What is the source of electrical energy in an artificial satellite ?

When the hot and cold junctions of a thermocouple are interchanged the theromo-emf

Discussion

No Comment Found

Related MCQs

Reply to Comment