An inductor in an electric circuit is essentially a coil of wire in which the voltage is affected by a changing current. Bydefinition, the voltage caused by the changing current is given by VL=L(di/dt), where L is the inductance (in H). If VL=9.0−0.4t for a 3.0-H inductor, find the current in the circuit after 20 s if the initial current was zero.

After 20 s, the current is A.

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

mathpapa

step-by-step explanation:

if im not mistaking its

step-by-step explanation: