Interested to Buy Any Domain ? << Click Here >> for more details...
- Software ()
- Sciences ()
- Engineering ()
- Business Management ()
- Accounting ()
- Advertising Media ()
- Architecture Design ()
- Call Centre ()
- Fashion Modelling ()
- Government ()
- Law ()
- Tourism Hotel ()
- Visa Interview Questions ()
- Code Snippets ()
- Entrance Exams ()
- ERRORS ()
In constant power region of 3-phase IM torque-speed characteristics, if frequency increases flux A does not alter B decreases C increases D none of above
Stator of 3-phase IM has 3 slots per pole per phase. If supply frequency is 50 Hz, calculate the speed of rotating stator flux A 1000 rpm B 500 rpm C 1500 rpm D 1440 rpm
A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate number of pole pairs. A 1 B 6 C 2 D 3
In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc
The Howland current source produces a A Unidirectional floating load current B Bidirectional single-ended load current C Unidirectional single-ended load current D Bidirectional floating load current
To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors
When we trim a resistor, we are A Making a fine adjustment B Reducing its value C Increasing its value D Making a coarse adjustment
Typically, an IA has an external resistor used for A Establishing the output impedance B Setting the voltage gain C Setting the current gain D Interfacing with an instrument
In the OTA, the transconductance is controlled by A The ac supply voltage B A bias current C The input signal voltage D The manufacturing process
In order to handle all combinations of input voltage polarities, a multiplier must have A Four-quadrant capability B Three- quadrant capability C Four inputs D Dual-supply voltages
When the two inputs of a multiplier are connected together, the device operates as a A Voltage doubler B Square root circuit C Squaring circuit D Averaging circuit
Amplitude modulation is basically a A Summing of two signals B Multiplication of two signals C Subtraction of two signals D Non-linear process
The output of an AM detector goes directly to the A IF amplifier B Mixer C Audio Amplifier D Loudspeaker
A PLL maintains lock by comparing A The phase of two signals B The frequency of two signals C The amplitude of two signals D None of these
A good op-amp has A Very high bandwidth B Narrow bandwidth C High selectivity D All of these
