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e = e0 sin(wt) starting from zero: time to reach half its maximum value

The same question, asked 3 times: 22 Apr 2025 S2, 13 Apr 2026 S1, 16 Apr 2026 S1. Every wording below, oldest first.

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  1. Question 1

    22 Apr 2025 S2

    40
    An alternating e.m.f. is given by e=e0sin⁡ωte =e_{0}\sin\omega t. In how much time the e.m.f. will have half its maximum value, if e starts from zero ? ( T=T = Time Period, sin⁡30∘=12\sin30^{\circ}=\frac{1}{2} )

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  2. Question 2

    13 Apr 2026 S1

    138
    An alternating e.m.f. is given by e=e0sin⁡ωte = e_0\sin\omega t. In what time the e.m.f. will have half its maximum value, if 'e' starts from zero? (sin⁡30∘=0.5)(\sin 30^\circ = 0.5)

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  3. Question 3

    16 Apr 2026 S1

    138
    An alternating e.m.f. is given by e=e0sin⁡ωte = e_0\sin\omega t. In what time the e.m.f. will have half its maximum value, if 'e' Starts from zero?

    Tap an option to check your answer.