List of top Physics Questions on LCR Circuit asked in MET

When \(100\,V\) DC is applied across a solenoid, current is \(1\,A\). When \(100\,V\) AC is applied, current is \(0.5\,A\). Frequency \(=50\,Hz\). Find inductance \(= x\,mH\).

The wavelength of the \(K_\alpha\) line for an element of atomic number 43 is \(\lambda\). Then the wavelength of the \(K_\alpha\) line for an element of atomic number 29 is

Two weights \(w_1\) and \(w_2\) are suspended to the two strings on a frictionless pulley. When the pulley is pulled up with an acceleration \(g\) then the tension in the string is

A police jeep is chasing with velocity of 45 km/h a thief in another jeep moving with velocity 153 km/h. Police fires a bullet with muzzle velocity of 180 m/s. The velocity with which it will strike the car of the thief is

A circular disc is rotating with angular velocity \(\omega\). If a man standing at the edge of the disc walks towards its centre then the angular velocity of the disc will

An alternating voltage \( E = 200\sqrt{2} \sin(100t) \, \mathrm{V} \) is connected to a \( 1\,\mu\mathrm{F} \) capacitor through an AC ammeter. The reading of ammeter is:

A solenoid has an inductance of 60 H and a resistance of 30 ohm. If it is connected to a 100 V battery, how long will it take for the current to reach \( e^{-1} \) of its maximum value?

The time taken by AC of 50 Hz in reaching from zero to the maximum value is:

In an AC circuit the potential difference and current are represented respectively by \( V = 100 \sin (100t) \) volt, \( I = 100 \sin \left( 100t + \frac{\pi}{3} \right) \) milliampere. The power in the circuit is:

The correct order of ionisation energy of C, N, O, F is

In an L-C-R series circuit, at resonance, the phase difference between current and voltage is: