Let us consider the amplifier of given Figure next.
a. Find the gain, K, so that the DVM indicates the weight but in volts (i.e., when the weight is 299 lb, the voltmeter reads 2.99 Vs).
b. Provide the circuit for a differential amplifier that can provide this gain. Specify the resistors in the amplifier circuit. Show how the amplifier inputs are connected to bridge points a and b to give the right output polarity.