Electronics and Experimental Methods (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 8 - 11 of 50

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Question number: 8

» Electronics and Experimental Methods » Semiconductor Devices » Diodes

Appeared in Year: 2014

MCQ▾

Question

The I – V characteristic of the diode in the circuit below is given by,

Equation

Where V is measured in volts and I is measured in amperes.

Circuit diagram consist of diode and resistor

Circuit Diagram Consist of Diode and Resistor

In figure a circuit diagram made up of a diode, battery of 10 V and resistance of 1 K (ohm) is shown.

The current I in circuit is – (December)

Choices

Choice (4) Response

a.

10.0 mA

b.

6.7 mA

c.

9.3 mA

d.

6.2 mA

Question number: 9

» Electronics and Experimental Methods » Operational Amplifiers

Appeared in Year: 2012

MCQ▾

Question

In the Op – amp circuit shown in the figure below, the input voltage Equation is 1V. The value of the output Equation is – (June)

An operational amplifier circuit

An Operational Amplifier Circuit

Figure shows the op – amp circuit of input voltage Vi is 1V.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 10

» Electronics and Experimental Methods » Operational Amplifiers

Appeared in Year: 2014

MCQ▾

Question

An op-amp based voltage follower – (June)

Choices

Choice (4) Response

a.

Is useful for converting a high impedance source into a low impedance source

b.

Has infinitely high closed loop gain.

c.

Is useful for converting a low impedance source into a high impedance source.

d.

Has infinitely high closed loop output impedance.

Question number: 11

» Electronics and Experimental Methods » Amplification » Op-Amp Based

Appeared in Year: 2012

MCQ▾

Question

In the op – amp circuit shown in the figure, Equation is a sinusoidal input signal of frequency 10 Hz and V0 is the output signal.

The circuit of an Op -Amp

The Circuit of an Op -Amp

In figure an op – amp circuit is shown. V1 is a sinusoidal input signal of frequency 10 Hz and V0 is the output signal.

The magnitude of the gain and the phase shift, respectively, close to the values – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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