" Q4Define mode."

Define the terms input resistance and current amplification factor of a transistor in CE mode.

Define full-duplex mode?

Define current amplification factor in a common- emitter mode of transistor ?

Define current amplification factor in a common emitter mode of transistor.

If the operation * is defined on the set Q - {0} of all rational numbers by the rule a * b=(a b)/4 for all a ,\ b in Q - {0} . Show that * is commutative on Qdot - {0}

If the mode of the following data is 4, then find the median of the data.