Question

Statement I The direction of the current changes periodically and therefore the current is called alternating current.
Statement II Equation $\varepsilon=\varepsilon_{0} \sin \omega t$ can be written as $\varepsilon=\varepsilon_{0} \sin 2 \pi v t$

• A. Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I.
• B. Both Statement I and Statement II are correct but Statement II is not the correct explanation of Statement I.
• C. Statement I is correct but Statement II is incorrect.
• D. Statement I is incorrect but Statement II is correct.

Answer 1

Answer: (B)

Alternating current changes direction periodically.
$\omega=2 \pi v $ and $ \varepsilon=\varepsilon_{0} \sin 2 \pi v t $