A100 ω resistor is connected in series with a 47 µf capacitor and a source whose maximum voltage is 5 v, operating at 100.0 hz. find the following. • the capacitive reactance of the circuit • the impedance of the circuit • the maximum current in the circuit • the phase angle

Explanation:

The electrical reactance is defined as:

Where:

So, replacing the data provided by the problem:

Now, the impedance can be calculated as:

Where:

Replacing the data:

In order to find the magnitude of the impedance we can use the next equation:

We can use Ohm's law to find the current:

Therefore the current is:

And its magnitude is:

Finally the phase angle of the current is given by:

grav potential energy

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27