1

AIEEE 2010

MCQ (Single Correct Answer)

+4

-1

In the circuit shown below, the key $$K$$ is closed at $$t=0.$$ The current through the battery is

2

AIEEE 2007

MCQ (Single Correct Answer)

+4

-1

In an $$a.c.$$ circuit the voltage applied is $$E = {E_0}\,\sin \,\omega t.$$ The resulting current in the circuit is $$I = {I_0}\sin \left( {\omega t - {\pi \over 2}} \right).$$ The power consumption in the circuit is given by

3

AIEEE 2006

MCQ (Single Correct Answer)

+4

-1

In a series resonant $$LCR$$ circuit, the voltage across $$R$$ is $$100$$ volts and $$R = 1\,k\Omega $$ with $$C = 2\mu F.$$ The resonant frequency $$\omega $$ is $$200$$ $$rad/s$$. At resonance the voltage across $$L$$ is

4

AIEEE 2006

MCQ (Single Correct Answer)

+4

-1

In an $$AC$$ generator, a coil with $$N$$ turns, all of the same area $$A$$ and total resistance $$R,$$ rotates with frequency $$\omega $$ in a magnetic field $$B.$$ The maximum value of $$emf$$ generated in the coil is

Questions Asked from Alternating Current (MCQ (Single Correct Answer))

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