1

JEE Main 2021 (Online) 20th July Morning Shift

Numerical

+4

-1

In an LCR series circuit, an inductor 30 mH and a resistor 1 $$\Omega$$ are connected to an AC source of angular frequency 300 rad/s. The value of capacitance for which, the current leads the voltage by 45$$^\circ$$ is $${1 \over x} \times {10^{ - 3}}$$ F. Then the value of x is ____________.

Your input ____

2

JEE Main 2021 (Online) 16th March Morning Shift

Numerical

+4

-1

A sinusoidal voltage of peak value 250 V is applied to a series LCR circuit, in which R = 8$$\Omega$$, L = 24 mH and C = 60 $$\mu$$F. The value of power dissipated at resonant condition is 'x' kW. The value of x to the nearest integer is ____________.

Your input ____

3

JEE Main 2021 (Online) 26th February Morning Shift

Numerical

+4

-1

In a series LCR resonant circuit, the quality factor is measured as 100. If the inductance is increased by two fold and resistance is decreased by two fold, then the quality factor after this change will be __________.

Your input ____

4

JEE Main 2021 (Online) 25th February Morning Shift

Numerical

+4

-1

A transmitting station releases waves of wavelength 960 m. A capacitor of 2.56 $$\mu$$F is used in the resonant circuit. The self inductance of coil necessary for resonance is __________ $$\times$$ 10

^{$$-$$8}H.Your input ____

Questions Asked from Alternating Current (Numerical)

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