Question
Download Solution PDFकिसी LCR परिपथ में 110 Ω का एक प्रतिरोध और 300 rad/s कोणीय आवृत्ति वाला 220 V विद्युत प्रदाय लगा है। यदि इस परिपथ से केवल संधारित्र को हटा दिया जाए तो धारा वोल्टता से 45° पश्च हो जाती है। इसके विपरीत यदि केवल प्रेरक को हटाते हैं तो धारा अनुप्रयुक्त वोल्टता से 45° अग्र हो जाती है। परिपथ में प्रवाहित rms धारा होगी:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
The root mean square voltage applied in the circuit is directly proportional applied current in the circuit and it is written as;
Vrms = RrmsIrms
Here we have Vrms as the voltage applied, Irms is current, and Rrms is resistance.
CALCULATION:
Given: Resistance, R = 110 Ω
Voltage, V = 220 V
angular frequency, ω = 300 rad/s
When inductor L and capacitor C are connected in series with resistance R then the circuit is in resonance and according to Ohm's law we have;
Vrms = RrmsIrms
⇒ Irms = \(\frac{V{rms}}{R_{rms}}\) ----(1)
Now, on putting the given values in equation (1) we have;
Irms = \(\frac{220}{110}\)
⇒Irms = 2 A
Hence, option 3) is the correct answer.
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