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Question: Answered & Verified by Expert
An alternating voltage is represented as $E=20 \sin 300 \mathrm{t}$. The average value of voltage over one cycle will be
PhysicsAlternating CurrentJEE Main
Options:
  • A Zero
  • B $10 \mathrm{volt}$
  • C $20 \sqrt{2}$ volt
  • D $\frac{20}{\sqrt{2}}$ volt
Solution:
1651 Upvotes Verified Answer
The correct answer is: Zero
$\mathrm{E}=20 \sin 300 \mathrm{t}$
Average value of any $\mathrm{AC}$ voltage over a cycle $=\mathrm{O}$ an it will have equal values for both positive and negative cycle, which will cancel out each other and resultant is zero

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