GATE (Graduate Aptitude Test in Engineering) Instrumentation: Questions 69 - 72 of 85

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Question 69

Appeared in Year: 2013

Question

MCQ▾

In the transistor circuit as shown below, the value of resistance is approximately,

Circuit Consists Oftransistor to Find the Resistance at Emitter

Choices

Choice (4)Response

a.

2.0

b.

1.5

c.

1.0

d.

2.5

Question 70

Appeared in Year: 2014

Question

MCQ▾

The resistance and inductance of an inductive coil are measured using an AC bridge as shown in the figure. The bridge is to be balanced by varying the impedance .

The Resistance and Inductance of an Inductive Coil Are Measured

For obtaining balance, should consist of element (s) :

Choices

Choice (4)Response

a.

R and C

b.

Only C

c.

R and L

d.

L and C

Question 71

Appeared in Year: 2014

Question

MCQ▾

The amplifier in the Figure has gain of -10 and input resistance of . The values of and is

The Non-Inverting Amplifier with Voltage Input

Choices

Choice (4)Response

a.

b.

c.

d.

Question 72

Appeared in Year: 2013

Question

MCQ▾

For the circuit shown below, the knee current of the ideal zener diode is 10 mA. To maintain 5 V across , the minimum value of the load resistor and the minimum power rating of zener diode in mW, respectively, are

The Circuit Shown is Containing Zener Diode

Choices

Choice (4)Response

a.

125 and 125

b.

125 and 250

c.

250 and 250

d.

250 and 125

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