A 150-Ω resistor is connected in series with a 0.250-H inductor and an ac source. The voltage across the resistor is vR=(3.80 V)cos[(720rad/s)t]. a) Derive an expression for the circuit current.
b) Determine the inductive reactance of the inductor.
c) Derive an expression for the voltage vL across the inductor.

Wavelength divides in half and speed stays the same.

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.