Basic Electronics-Set B

Which among the following are NOT the properties of an ideal Op-Amp

• Infinite Bandwidth

• Infinite output impedance

• Zero Noise

• Infinite CMMR

Which among the following are Exclusive Gates:

• NAND

• NOR

• EXNOR

• EXOR

NAND and NOR Gates are called universal gates because:

• The gates are universally used

• They can be easily fabricated when compared to the other gates

• All other logic gates can be obtained using these gates

• They are used in almost all digital electronic circuits

For a transistor to work as an amplifier it has to operate in the ___ region

• Active Region

• Cut Off region

• Saturation Region

• Switched Region

Which among the following is TRUE for transistors?

• Ic= Ib + Ie

• Ie= Ib + Ic

• Ib=Ic+ Ie

• Ie= Ic-Ib

Which among the following are the doped regions of the transistor

• Emitter alone but not the collector

• Both emitter and base but not the collector

• Emitter, base and collector

• Collector and base alone but not emitter

Choose all that holds good for transistors

• The base region is more heavily doped than the other regions

• The power dissipation is higher at the collector

• They are passive electronic devices

The acronym BJT stands for:

• Bipolar Junction Transistor

• Bi junction Transistor

• Base Junction Transistor

Determine the output from the following circuit

• 180^o in phase with input signal

• 180^o out of phase with input signal

• 90^o out of phase with input signal

• 90^o in phase with input signal

Find the output voltage of an ideal op-amp. If V₁ and V₂ are the two input voltages

• V_O= V₁-V₂

• V_O= A×(V₁-V₂)

• V_O= A×(V₁+V₂)

• V_O= V₁×V₂