A circuit contains only a 48.2 ohm resistor. An AC voltage of peak value 332 V and frequency 58.8...

Question:

A circuit contains only a 48.2 {eq}\Omega {/eq} resistor. An AC voltage of peak value 332 V and frequency 58.8 Hz is applied to this circuit. What is the rms current? Answer in units of A.

Alternating Current:

The current which reverses its direction every half of its cycle is known as alternating current.

Generally, it is represented in sinusoidal form .

{eq}i=i_o sin (\omega t +\phi) {/eq}

where

  • i is the current at time t
  • {eq}i_o {/eq} is the maximum current
  • {eq}\omega {/eq} is the angular frequency of the source

Answer and Explanation: 1

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Given:

  • The resistance of the circuit is {eq}R = 48.2 \Omega. {/eq}
  • The peak voltage of the AC is {eq}V_o = 332 \ V. {/eq}


The peak current in...

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Alternating Current: Definition, Advantages & Disadvantages

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Chapter 12 / Lesson 7
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Read the definition of direct and alternating current. See the advantages of AC over DC and understand why we use AC instead of DC. Know if we use AC or DC in homes.


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