Question

Answer these questions and submit them before your lab session.

1. Calculate the reactance of a 7 H capacitor at a frequency of 250 Hz.

2. If an RL circuit has a 50 Ω resistor in series with a 7 mH inductor, what will its impedance be at 500 Hz?

3. An RL circuit has a 5 kΩ resistor and a 1 H inductor. At what frequency will the current lag the voltage by π/4?

4. An RL circuit has a 5 kΩ resistor and a 1 mH inductor. This circuit is driven by a 100 Hz sine wave with 1 V amplitude. What is the amplitude of the current in the circuit?

Answer 1

First and foremost thing, there is mis-typed capacitor instead of inductor because you use the SI unit Henry (H). If you are interested in capacitor then it should be in Farad. I calculated the both case.  

Part 3 as () = pi/4. So tan of pi/4 will be 1 so I equate wL= R.

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