64101. Refer to this figure. Determine the minimum value of IB that will produce saturation.
64102. A transistor amplifier has a voltage gain of 100. If the input voltage is 75 mV, the output voltage is:
64103. Refer to this figure. If VCE = 0.2 V, IC(sat) is:
64104. What is the ratio of IC to IB?
64105. For normal operation of a pnp BJT, the base must be ________ with respect to the emitter and ________ with respect to the collector.
64106. Which of the following conditions must be met to allow the use of the approximate approach in a voltage-divider bias configuration?
64107. Refer to this figure. Determine the value of Av.
64108. For a common-emitter amplifier, the purpose of swamping is
64109. What is the typical value of the current gain of a common-base configuration?
64110. What is the most important r parameter for amplifier analysis?
64111. An emitter-follower is also known as a
64112. The ________ model fails to account for the output impedance level of the device and the feedback effect from output to input.
64113. Refer to this figure. Calculate the value of VB.
64114. You have a need to apply an amplifier with a very high power gain. Which of the following would you choose?
64115. What is the voltage gain of a feedback pair connection?
64116. A common-emitter amplifier has ________ voltage gain, ________ current gain, ________ power gain, and ________ input impedance.
64117. What is the range of the input impedance of a common-base configuration?
64118. The advantage that a Sziklai pair has over a Darlington pair is
64119. What is the typical range of the output impedance of a common-emitter configuration?
64120. What is the unit of the parameter ho?
64121. Refer to this figure. Calculate the value of Rin(tot).
64122. What is the range of the current gain for BJT transistor amplifiers?
64123. What does the negative sign in the voltage gain of the common-emitter fixed-bias configuration indicate?
64124. For the common-emitter fixed-bias configuration, there is a ________ phase shift between the input and output signals.
64125. Which one of the following configurations has the lowest input impedance?
64126. Which of the following represent(s) the advantage(s) of the system approach over the r-model approach?
64127. The differential amplifier has
64128. The emitter-follower configuration has a ________ impedance at the input and a ________ impedance at the output.
64129. The differential amplifier produces outputs that are
64130. The ________ model suffers from being limited to a particular set of operating conditions if it is to be considered accurate.
64131. Under which of the following condition(s) is the current gain ?
64132. The ________ configuration is frequently used for impedance matching.
64133. Refer to this figure. You notice while servicing this amplifier that the output signal at Vout is reduced from normal. The problem could be caused by
64134. When the bypass capacitor is removed from a common-emitter amplifier, the voltage gain
64135. Refer to this figure. Determine the value of VC.
64136. In a common-base amplifier, the input signal is connected to the
64137. Which of the following is (are) true to achieve a good overall voltage gain for the circuit?
64138. To analyze the common-emitter amplifier, what must be done to determine the dc equivalent circuit?
64139. For the common-emitter amplifier ac equivalent circuit, all capacitors are
64140. Refer to this figure. If an emitter bypass capacitor was installed, determine the value of Rin(base).
64141. Under which of the following conditions is the output impedance of the network approximately equal to RC for a common-emitter fixed-bias configuration?
64142. Which of the following gains is less than 1 for a common-base configuration?
64143. Which of the following define(s) the conversion efficiency?
64144. The dc emitter current of a transistor is 8 mA. What is the value of re?
64145. Which of the following should be done to obtain the ac equivalent of a network?
64146. In an unbypassed emitter bias configuration hie replaces ________ in the re model.
64147. Which of the following is (are) true regarding the input impedance for frequencies in the midrange 100 kHz of a BJT transistor amplifier?
64148. For the collector dc feedback configuration, there is a ________ phase shift between the input and output signals.
64149. A common-collector amplifier has ________ input resistance, ________ current gain, and ________ voltage gain.
64150. The total gain of a multistage amplifier is the ________.
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