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Electronics and Communication Measurement And Instrumentation Difficulty: Medium

Majority of digital voltmeter are built with a dual - slope ADC because:

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An amplifier without feedback has a voltage gain of 50, input resistance of 1 kΩ and output resistance of 2.5 kΩ. The input resistance of the current-shunt negative feedback amplifier using the above amplifier with a feedback factor of 0.2 is What will be the content of Accumulator, Register-B and Overflow flag (OV) after execution of following 8051 micro-controller assembly code? MOV A, #65h MOV 0F0h, #14h DIV AB DIV AB An 8 bit DAC has a full scale output of 2 mA and full scale error of ±0.5%. If input is 10000000 the range of outputs is . . . . . . . . When a human being tries to approach an object, his brain acts as: Error constants of system are a measure of