

MCQOPTIONS
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1. |
The_maximum_electron_current_per_unit_area_provided_by_an_emitter_is_given_by_(where_J=current_density,_T=absolute_temperature_in_K,_ɸ=work_function_in_keV,_k=Boltzmann’s_constant_&_A=emission_constant)$# |
A. | J= AT exp(-…∏/kT) |
B. | J= AT (-…∏/kT) |
C. | J= AT2 exp(-…∏/kT) |
D. | J= exp(-A…∏/kT2) |
Answer» D. J= exp(-A‚Äö√Ѭ∂‚Äö√†√®/kT2) | |