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BITSAT 2024
Exam
BITSAT
Year
2024
Subject
Physics
Chapter
Alternating Current

BITSAT 2024 · Physics · Alternating Current

Find the average value of current shown graphically from t=0 to t=2...

Find the average value of current shown graphically from t=0t=0 to t=2st=2 \mathrm{ s}. Find the average value of current shown graphically from t=0 to t=2 s .

Options

  1. A3 A
  2. B5 A
  3. C10 A
  4. D4 A

Correct answer

B. 5 A

Step-by-step solution

From i−ti-t graph, area from t=0tot=2s,wegett=0 to t=2 \mathrm{ s} , we get=12×1×10+12×(2−1)×10=5+5=10A∴ Area current, iav= Area (i−t) graph  time interval =102=5A\begin{aligned} & =\frac{1}{2} \times 1 \times 10+\frac{1}{2} \times(2-1) \times 10 \\ & =5+5=10 \mathrm{ A} \\ \therefore \text{ Area current, } i_{\mathrm{av}} & =\frac{\text{ Area }(i-t) \text{ graph }}{\text{ time interval }}=\frac{10}{2}=5 \mathrm{ A} \end{aligned}$$
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