The temperature of cathode is increased from 2500K to 2600K. The increase in thermionic emission current is about ?->(Show Answer!)

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1. The temperature of cathode is increased from 2500K to 2600K. The increase in thermionic emission current is about

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MCQ->The temperature of cathode is increased from 2500K to 2600K. The increase in thermionic emission current is about....

MCQ->Assertion (A): When cathode temperature is increased from 2500 K to 2550 K, thermionic emission current may increase by about 50%.Reason (R): Thermionic emission current ∝ T2 e-Ew/kT.

MCQ->Assertion (A): At a temperature of 1000 K, thermionic emission current is about 0.1 A/cm2 of surface.Reason (R): Thermionic emission current is given by Ith = SA0 T2 e-Ew/kT.

MCQ->The energy to cause thermionic emission is supplied by heating the cathode.....

MCQ->If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that....

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