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7. Alternating current — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics7. Alternating current1 Mark
MCQ
The direct current which would give the same heating effect in an equal constant resistance as the current shown in figure, i.e. the $r.m.s.$ current, is.....$A$
  • A
    $0$
  • B
    $\sqrt 2$
  • ✓
    $2$
  • D
    $2 \sqrt 2 $
✓

Answer

Correct option: C.
$2$
c

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