List of top Physics Questions on Amperes circuital law asked in MHT CET

In a series LCR circuit connected to an AC source, at resonance, the current is maximum because:
A coil has a resistance of \( 30 \, \Omega \) and an inductive reactance of \( 20 \, \Omega \) at 50 Hz frequency. If an AC source of 200 V and 100 Hz is connected across the coil, then how much current will flow through the coil?
Two wires carrying currents $5\ \text{A}$ and $2\ \text{A}$ are enclosed in a circular loop as shown in the figure. Another wire carrying a current of $3\ \text{A}$ is situated outside the loop. The value of $\oint \vec{B} \cdot d\vec{l}$ around the loop is ($\mu_0 = $ permeability of free space, $d\vec{l}$ is the length of the element on the Amperion loop)