Alternating Current

Bihar Board Class 12 · Physics · 41 past questions

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1. Q11 2024 Set A

   What value of alternating current is measured by hot wire ammeter ?

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2. Q12 2024 Set A

   Unit of reactance is

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3. Q13 2024 Set A

   Mean value of alternating current in a full cycle is

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4. Q14 2024 Set A

   If the phase difference between alternating current and e.m.f. is $\phi$, then the value of power factor is

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5. Q15 2024 Set A

   In $AC$ circuit, power is lost in only

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6. Q16 2024 Set A

   An alternating electric current is represented by equation $I = 0.6\sin 100\pi t$. The frequency of…

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