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Electronics and Communication Engineering - Materials and Components - Discussion

Discussion Forum : Materials and Components - Section 1 (Q.No. 36)
Materials and Components
36.

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.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:

If different values are substituted in the equation for Ith the value of emission current comes out to be about 0.1 A/cm2.

Discussion:
1 comments Page 1 of 1.
Daku said:   5 years ago
Give Explanation for this.
(1)
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