In the above circuit, C=23μF,R2=20Ω,L=103H and R1=10Ω. Current in L-R1 path is I1 and in C−R2 path it is I2. The voltage of AC source is given by, V=200 2 sin( 100 t ) volts. The phase difference between I1 and I2 is:
Held on 12 Jan 2019 · Verified 6 Jul 2026.
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A short bar magnet placed with its axis at $30^{\circ}$ with an external field of 800 Gauss, experiences a torque of $0.016 \mathrm{~N}. \mathrm{m}$. The work done in moving it from most stable to most unstable position is $\alpha \times 10^{-3} \mathrm{~J}$. The value of $\alpha$ is $\_\_\_\_$.
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A series LCR circuit with $R = 20\ \Omega$, $L = 1.6\text{ H}$ and $C = 40\ \mu\text{F}$ is connected to a variable frequency a.c. source. The inductive reactance at resonant frequency is _______ $\Omega$.
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