ElectroMagnetic InductionMedium
Question
In the circuit shown in the figure, the A.C. source gives a voltage V = 20 cos (2000 t) volt neglecting source resistance, the voltmeter and ammeter readings will be : -


Options
A.0V, 1.4A
B.5.6V, 1.4A
C.0V, 0.47 A
D.1.68 V, 0.47 A
Solution
Here
= 2000 rad / s
⇒
so resonance condition
⇒ I =
= 1.4A
and reading of voltmeter = (I) (4) = 4√2 = 5.6V
⇒
so resonance condition
⇒ I =
and reading of voltmeter = (I) (4) = 4√2 = 5.6V
Create a free account to view solution
View Solution FreeMore ElectroMagnetic Induction Questions
Two different coils have self-inductance L1 = 8 mH and L2 = 2 mH. The current in one coil is increased at a comsatnt rat...An induction coil stores 32 joules of magnetic energy and dissipates energy as heat at the rate of 320 watts. when a cur...In the given circuit the current rises after the key is closed. At instant, when the current is 15 mA. Then potential di...The frequency of oscillation of current in the inductor is :...The figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular ma...