The equivalent circuit shown represents a / an ................. Gate.

The equivalent circuit shown represents a / an ................. Gate.

A. Ex-OR
B. NOT
C. OR
D. AND

Answer:

It is an AND gate because lamp glows only when both switches are closed.

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Simple tips to remember the phasor relationship b/W voltage and current for resistor , inductor and capacitor

Simple tips to remember the phasor relationship b/W voltage and current for resistor , inductor and capacitor

Remember the word "CIVIL"

In capacitor I leads V

In inductor I lags V



for pure capacitor I leads V by 90 deg

for pure inductor I lags V by 90 deg

for pure resistor I inphase with V (0 deg)

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A resistance 5ohm inductance 0.02 H and capacitor 5 uf are connected in series.find the value of power factor at resonance condition.

A resistance 5ohm inductance 0.02 H and capacitor 5 uf are connected in series.find the value of power factor at resonance condition.

a. 0.6
b. 0.8
c. 0.9
d. 1

Answer:

at resonance condition,XL=XC and therefore Z=R, hence for pure resistive circuit pf will be unity.

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One of the parts ( A, B, C, D ) in the sentence given below contains an ERROR. Which one of the following is INCORRECT

GATE-EE-2012
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One of the parts ( A, B, C, D ) in the sentence given below contains an ERROR. Which one of the following is INCORRECT ?

I requested that the should be given the driving test today instead of tomorrow.

A. requested that

B. should be given

C. the driving test

D. instead of tomorrow

Answer:

B.should be given

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A 1-hp motor draws 1000 watts. What is its efficiency ?

A 1-hp motor draws 1000 watts. What is its efficiency ?


Answer:

Efficiency = output / input

Therefore, efficiency = 746 / 1000 = 0.746

Efficiency = 74.6 % 

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