ଉତ୍ତର ହେଉଛି (D)।
ଭ୍ଯାଙ୍କୁଲର ଓ ଇଣ୍ଡକ୍ଟାରର ମଧ୍ୟରେ ବ୍ଯାସ ପରସ୍ପର ପ୍ରତିରୋଧାତ୍ମକ ହୋଇଛି। ତେଣୁ ସମୁଦାୟ ବ୍ଯାସ √(40² + 30²) = 50 V ହୁଏ।
ଉତ୍ତର ହେଉଛି (B)।
କାର୍ଯ୍ୟ ଫ୍ଯାକ୍ଟର cos(45°) = 0.707 ହୁଏ।
ଉତ୍ତର ହେଉଛି (C)।
ପରିବର୍ତ୍ତନ କ୍ଷେତ୍ର ହେଉଛି arctan(40/60) ≈ 33.69°।
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