A capacitor with a capacitance of 3.5 μF is initially uncharged. It is connected in series with a switch of negligible resistance, a resistor with a resistance of 19 kΩ, and a battery that has a potential difference of 170 V. a. Immediately after the switch is closed, what is the voltage drop VC, in volts, across the capacitor? b. Immediately after the switch is closed, what is the voltage drop VR, in volts, across the resistor? c. Immediately after the switch is closed, what is the current, in amperes, through the resistor?
A capacitor with a capacitance of 3.5 μF is initially uncharged. It is connected in series with a switch of negligible resistance, a resistor with a resistance of 19 kΩ, and a battery that has a potential difference of 170 V.
a. Immediately after the switch is closed, what is the voltage drop VC, in volts, across the capacitor?
b. Immediately after the switch is closed, what is the voltage drop VR, in volts, across the resistor?
c. Immediately after the switch is closed, what is the current, in amperes, through the resistor?
d. Find an expression for the time after the switch is closed when the current in the resistor equals half its maximum value.
e. What is the charge Q, in microcoulombs, on the capacitor when the current in the resistor equals one half its maximum value.
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