EASY
JEE Main
IMPORTANT
Earn 100

Given below are two statements :
Statement-I: The reactance of an AC circuit is zero. It is possible that the circuit contains a capacitor and an inductor.
Statement-II: In AC circuit, the average power delivered by the source never becomes zero.
In the light of the above statements, choose the correct answer from the options given below
(a)Both Statement I and Statement II are true.
(b)Both Statement I and Statement II are false.
(c)Statement I is true but Statement II is false.
(d)Statement I is false but Statement II is true.

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Important Questions on Electromagnetic Induction and Alternating Currents
EASY
JEE Main
IMPORTANT
A circular coil of 1000 turns each with area is rotated about its vertical diameter at the rate of one revolution per second in a uniform horizontal magnetic field of . The maximum voltage generation will be _____ .

EASY
JEE Main
IMPORTANT
Match List - I with List - II.
List-I | List-II | ||
(A) | AC generator | (I) | Detects the presence of current in the circuit |
(B) | Galvanometer | (II) | Converts mechanical energy into electrical energy |
(C) | Transformer | (III) | Works on the principle of resonance in AC circuit |
(D) | Metal detector | (IV) | Changes an alternating voltage for smaller or greater value |

EASY
JEE Main
IMPORTANT
If wattless current flows in the circuit, then the circuit is :

HARD
JEE Main
IMPORTANT
The current in a coil of self inductance is increasing according to the law . Find the amount of energy spent (in ) during the period when the current changes from to .

MEDIUM
JEE Main
IMPORTANT
A sinusoidal voltage volt is applied to a series LCR circuit in which and . The phase difference between the applied voltage and resultant current will be

EASY
JEE Main
IMPORTANT
In a series LCR circuit, the inductance, capacitance and resistance are , and respectively. They are connected to an source of voltage and frequency of . The approximate value of current in the circuit will be _____ .

MEDIUM
JEE Main
IMPORTANT
Two coils of self inductance and are connected in series combination having mutual inductance of the coils as . The equivalent self inductance of the combination will be

EASY
JEE Main
IMPORTANT
A metallic conductor of length rotates in a vertical plane parallel to east-west direction about one of its end with angular velocity . If the horizontal component of earth's magnetic field is , then emf induced between the two ends of the conductor is
