Alternating Current

Bihar Board Class 12 · Physics · 41 past questions

5 of 41 · show all

1. Q6 2025 Set D

   The peak value of an alternating current is 10 $A$. Its root mean square value will be

   Try it →
2. Q7 2025 Set D

   In a purely inductive circuit, the power factor is

   Try it →
3. Q8 2025 Set D

   In an a.c. circuit containing only capacitor, the phase difference between current and voltage is

   Try it →
4. Q9 2025 Set D

   In resonance condition, the frequency of $L$-$C$ circuit is

   Try it →
5. Q10 2025 Set D2023 Set F

   In a step-up transformer, the value of current in secondary compared to the primary coil is

   Try it →