Reason (R): Thermionic emission current is given by Ith = SA0 T2 e-Ew/kT.
A.Both A and R are true and R is correct explanation of A
B.Both A and R are true but R is not correct explanation of A
C.A is true but R is false
D.A is false but R is true
Answer:A
Reason (R): Thermionic emission current is given by Ith = SA0 T2 e-Ew/kT.
A.Both A and R are true and R is correct explanation of A B.Both A and R are true but R is not correct explanation of A C.A is true but R is false D.A is false but R is true