ElectroMagnetic InductionHard
Question
An ideal transformer has 100 turns in the primary and 250 turns in the secondary. The peak value of the A.C. is 28V the r.m.s. secondary voltage is nearest to : -
Options
A.50V
B.70V
C.100V
D.40V
More ElectroMagnetic Induction Questions
The current flows in a circuit as shown below. If a second circuit is brought near the first circuit then the current in...Two identical inductance carry currents that vary with time according to linear laws (as shown in figure). In which of t...For a LCR series circuit with an A.C. source of angular frequency ω :...In an LR circuit current at t = 0 is 20 A. After 2s it reduces to 18 A. The time constant of the circuit is (in second):...A circular iron, core supports N turns. If a current I produces a magnetic flux φ across the core′s cross sec...