Analog Electronics - ECE Questions and Answers

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

In a commercially available good power supply the voltage regulation is about

10%

20%

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

In the circuit of figure the diode

will conduct as the whole cycle

will conduct in the positive half cycle

will not conduct

will conduct from 30° to 150° in the positive half cycle

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

The most commonly used bias in BJT amplifier circuits is

voltage divider bias

emitter bias

collector bias

collector feedback bias

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

In the circuit of figure, v₁ = v₂ = 10 V. Then

I₁ = I₂

I₁ > I₂

I₂ > I₁

I₁ = 0

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

The inverting op-amp shown in the figure has an open loop gain to 100. The closed loop given is

-8

-9

-10

-11

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

In a voltage regulated power supply the zener operates in the breakdown region when (V_in is input voltage and V_z is zener breakdown voltage)

V_in < V_z

V_in > V_z

V_in = V_z

both (a) or (b)

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

The parameter h₁₁ for CB circuit is higher than that for CE circuit.

True

False

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Figure shows a self bias circuit for FET amplifier, I_D = 4 mA. Then I_S =

4 mA

2 mA

0.4 mA

0.2 mA

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

In the CE equivalent circuit of figure, the voltage gain is

200

1000