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A resistor of resistance 4 Ω and an inductor of reactance 3 Ω are connected across an ac source of emf given by V = 40cos(ωt) volt as shown in the diagram.

Answer the given below question on the basis of given information.
Q. The potential difference across resistor at t=π2ω is
नीचे दिए गए प्रश्न के लिए अनुच्छेद
4 Ω प्रतिरोध के एक प्रतिरोधक तथा 3 Ω प्रतिघात के एक प्रेरक को चित्र में दर्शाए अनुसार V = 40cos(ωt) वोल्ट द्वारा व्यक्त किए गए वि. वा. ब. के एक ac स्त्रोत के सिरों पर संयोजित किया जाता है।

दी गई सूचना के आधार पर निम्नलिखित प्रश्नों के उत्तर दीजिए।
प्रश्न: t=π2ω पर प्रतिरोधक के सिरों पर विभवान्तर है

A
19.2 V
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B
20 V
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C
Zero
शून्य
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D
25.6 V
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Solution

The correct option is A 19.2 V
sol.

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