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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:
5% people of a village in India died by dengue, 15% of the remainder left the village on account of fear. If now the population is reduced to 3553, how much was it in the beginning ?
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:
In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.
The most powerful and the most perfect ____________ of thought and feeling through the medium of oral language must be traced to the mastery of words.___________ is better suited to lead speakers and readers ___________ English into an easy control of this language than the command of the phrase that perfectly expresses the thought. Every speaker's aim is to be heard and _____________. A clear, crisp _____________ holds an audience as by the spell of some irresistible power. mastery of words. ___________ is better suited to lead
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:
Which of the following statements are true about soft power?
1. Soft power can be used by state actors.
2. Soft power can be used by non-state actors.
3. Soft power is the second face of power.
4. Soft power is a form of idealism.
Select the correct answer:
For an instrumentation amplifier, the following parameters are given (a) High input resistance and low power consumption (b) Low input resistance and low power consumption (c) High CMRR and high slew rate (d) Low CMRR and high slew rate Which of the given parameters are a major requirement for an instrumentation amplifier?
Amplifier efficiency is the ratio of RF output power to DC input power. This parameter determines the performance of an amplifier.