1

JEE Main 2021 (Online) 27th July Morning Shift

Numerical

+4

-1

Consider an electrical circuit containing a two way switch 'S'. Initially S is open and then T

_{1}is connected to T_{2}. As the current in R = 6$$\Omega$$ attains a maximum value of steady state level, T_{1}is disconnected from T_{2}and immediately connected to T_{3}. Potential drop across r = 3$$\Omega$$ resistor immediately after T_{1}is connected to T_{3}is __________ V. (Round off to the Nearest Integer)Your input ____

2

JEE Main 2021 (Online) 25th July Evening Shift

Numerical

+4

-1

Two circuits are shown in the figure (a) & (b). At a frequency of ____________ rad/s the average power dissipated in one cycle will be same in both the circuits.

Your input ____

3

JEE Main 2021 (Online) 25th July Morning Shift

Numerical

+4

-1

An inductor of 10 mH is connected to a 20V battery through a resistor of 10 k$$\Omega$$ and a switch. After a long time, when maximum current is set up in the circuit, the current is switched off. The current in the circuit after 1 $$\mu$$s is $${x \over {100}}$$ mA. Then x is equal to ___________. (Take e

^{$$-$$1}= 0.37)Your input ____

4

JEE Main 2021 (Online) 20th July Evening Shift

Numerical

+4

-1

A series LCR circuit of R = 5$$\Omega$$, L = 20 mH and C = 0.5 $$\mu$$F is connected across an AC supply of 250 V, having variable frequency. The power dissipated at resonance condition is ______________ $$\times$$ 10

^{2}W.Your input ____

Questions Asked from Alternating Current (Numerical)

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