ElectroMagnetic InductionHard
Question
Number of turns in primary coil of a transformer is 240. When input voltage is 20 volt, then output voltage is 2.5 volt. The number of turns in secondary coil is :-
Options
A.250
B.100
C.10
D.30
More ElectroMagnetic Induction Questions
Turn ratio a step up transformer is 1 : 2 if a Lechlanche cell of 1.5 V is connected across the input, then the voltage ...A solenoid of 10 henry inductance and 2 ohm resistance, is connected to a 10 volt battery. In how much time the magnetic...Figure shows a square loop of side 1 m and resistance 1 Ω. The magnetic field on left side of line PQ has a magnitu...In the given circuit the current rises after the key is closed. At instant, when the current is 15 mA. Then potential di...The circuit shown in figure is allowed to reach steady state and then a soft iron core is inserted in the coil such that...