I am having trouble coming up with the last answer! Computers are good at readin

Question

I am having trouble coming up with the last answer!

Computers are good at reading out voltages, so these devices are often combined with a fixed-value resistor to create a voltage divider circuit. Consider the circuit shown below where the fixed resistor, R, has a resistance of 18.0 k and the FSR has a resistance of 50.0 k when there is no force acting on the FSR. A voltage V=5.00 V is being applied to the two series resistors. What is the current flowing through the FSR when there is no force being applied to the FSR? 7.35*10^-5 A What is the current flowing through the fixed resistor when there is no force being applied to the FSR? 7.35*10^-5 A Consider the negative terminal of the voltage source to be at a potential of zero Volts. What is the electric potential (voltage) at the location A between the two resistors? 1.32 V Suppose that if a force of 1.40 N is applied to the FSR, its resistance decreases to 5.00 k. What would be the new current through the fixed resistor, R? 0.000217 A What would be the electric potential at Location A between the two resistors with the applied force of 1.40 N?

Explanation / Answer

since current in the circuit after the application of force is

i = 0.0002174 A

from kirchoff law we have

V-VA = i ( 5000)

V = 5V

VA = 3.913 V ( answer)

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