Q.1/ choose the correct answer: 1. Instrumentation amplifiers are used primarily in (a) high-noise cnvironments (b) medical equipment (c) test instruments (d) filter circuits\ 2. With zero volts on both inputs, an op-amp ideally should have an output equal to (a)the positive supply voltage (b) the negative supply voltage (c) Zero (d) the CMRR 3. Bias current compensation (a) reduces gain (b) reduces output error voltage (c) increases bandwidth (d) has no effect

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A: Note: Here, To design base resistor for CE amplifier only question is considered .

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Coulomb’s Law

Coulomb's law states that the attraction or repulsion force between two charged things is proportional to the product of their charges and inversely proportional to the square of their distance. It has an effect along the line that connects the two-point charges.