Shown below is a circuit that includes a 1.0k fixed resistor, a 9V battery, and a photoresistor. (A photoresistor is a resistor whose resistance decreases as light gets brighter and increases as it gets darker.) A voltmeter is used to measure the voltage across the fixed resistor. On a bright sunny day, the voltmeter reads 5.6V. At night, the resistance of the photoresistor is 35 times greater than during the day.
a. What is the resistance of the photoresistor during the bright sunny day?
b. What does the voltmeter read at night?