Alternating Current

JEE Main · Physics · 3 past questions

These are the board's own papers. 102 more board questions reprinted in the books we use in class are for signed-in students: sign in.

1. Q1 2026 5 Apr Shift 1

   An a.c. source of angular frequency $\omega$ is connected across a resistor $R$ and a capacitor $C$ in…

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2. Q2 2026 5 Apr Shift 2

   A series LCR circuit with $R=20\ \Omega$, $L=1.6$ H and $C=40\ \mu$F is connected to a variable frequency…

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3. Q3 2026 6 Apr Shift 1

   A LCR series circuit driven with $E_{rms}$ = 90 V at frequency $f_d$ = 30 Hz has resistance $R$ = 80…

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