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Analog Electronics

Analog Electronics
The percentage voltage regulation of voltage supply providing 100 V unloaded and 95 V at full load is

  5 %.
  0.53 %.
  none of them.
  5.3 %.

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Analog Electronics
Single phase, 230 V, 1 KW heater is connected acrose single phase 230 V, 50 Hz supply through a diode. The power delivered to the heater element

 100 W.
 1000 W.
 None of above.
  500 W.

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Analog Electronics
The number of valence electrons in silicon atom are :

 1
 3
 4
 2

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Analog Electronics
How will be the extrinsic semiconductor act at room temperature ?

 Conductor
 Poor conductor
None of these
 Medium Conductor

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Analog Electronics
A 741-type OP-amp has a gain-bandwidth product of 1MHz.A non-inverting amplifier using this opamp & having a voltage gain of 20db will exhibit -3db bandwidth of

50 KHz
100 KHz
1000/17 KHz
1000/7.07 KHz

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Analog Electronics
Why holes are not created in a metal ?

 Both 1 & 2
 The forbidden band is missing
 The conduction band and valance band are overlapped
None of these

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