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Consider the following statements. It converts the positive half cycle of the sinusoidal wave of the input to the pulsating DC output signal. It converts the positive half as well as negative half cycle of the sinusoidal wave of the input to pulsating DC output signal. Which of the following statements is CORRECT about half-wave rectifier?
If the output power of an amplifier is 10 V, and the input power supplied to the amplifier is 0.229 V given that the DC voltage used is 38.5 V, efficiency of the power amplifier is:
If a power amplifier has an output power of 10 W, and an amplifier gain of 16.4 dB, then the input drive power is:
An amplifier has a noise equivalent temperature of 170 K. If the amplifier is used with a source having an equivalent noise temperature of TS=450 K, the output noise power of the amplifier is:
The pulsating torque exerted by steam locomotives causes which of the following?
Attraction causes infatuation. Infatuation causes anger. Anger causes frustration. Therefore attraction causes frustration. Point out the correct statement from the following:
Which of the following among item A and item B are correct?
The right of private defence extends, subject to Section 99, to the causing of death of the assailant or aggressor in the following circumstances:
Item A: For defence of body:
1. Against an act which reasonably causes the apprehension of an assault to outrage the modesty
2. Against an act which reasonably causes the apprehension that the assailant will kill his children living in another city
3. Against an act which reasonably causes the apprehension that grievous hurt would otherwise be the consequence
Item B: For defence of property:
1. While the trespasser is engaged in house breaking during day time.
2. Against a thief who reasonably causes the defender to believe that he would lose his property
3. Against a person who commits mischief under such circumstances as may reasonably cause apprehension that grievous Hurt would be a consequence
Select the correct answer:
The gain of an amplifier without feedback is 100 db. If a negative feedback of 3 db is applied, the gain of the amplifier will become ___________
Which of the following types of power have to be pre-justified; and, when the need and occasion arise, must very soon be post-justified ?  1. Reward power 2. Coercive power 3. Legitimate power 4. Expert power 5. Referent power Which of the above statements are correct ? 
List I embodies situational leadership style and List II indicates the power resource which supports them. List I Situational leadership style List II Power resource a)  Directive style (HT / LR) i) Expert power b) Supportive style (HT / HR) ii)  Information power c) Participative style (LT / HR) iii)  Reward power d)  Delegating style (LT / LR) iv)  Coercive power   *HT = High Task LT = Low Task HR = High Relationship LR = Low Relationship Choose the correct answer from the options given below: