A) Find the current through a 20-N resistor when the voltage across the resistor is 5 V. ) Find the voltage (as a function of time) across an 20-µH inductor

when the current through the inductor is (0.5 \mathrm{~A}) \cos \left(\frac{2 \pi 60}{\mathrm{~s}} t\right) ) Find the voltage across a capacitor of capacitance 4 x 10-10 F when the charge on the positive plate of the capacitoris 2 x 10-9 C.