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একটি স্টেপ আপ ট্রান্সফরমারে, গৌণ কুণ্ডলীর পাকসংখ্যা মুখ্য কুন্ডলীর পাকসংখ্যার দ্বিগুণ। যদি মূখ্য কুন্ডলীকে কোন পরিবর্তী বিদ্যুৎ লাইনের সাথে সংযুক্ত করা হয়, তাহলে মুখ্য কুণ্ডলীর তুলনায় গৌণ কুণ্ডলীতে- (In a step up transformer, the number of turns in the secondary coil is twice to that of primary coil. If you apply an alternating current in the primary coil, then in the secondary coil compared to the primary coil-)
If brushes of a D.C. generator are moved in order to bring these brushes in magnetic neutral axis, there will be
In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will
A certain amount of current flows through a ring shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil?
How many flowers are there if all of them are roses except two, all of them are tulips except two and all of them are daisies except two?
How many flowers are there if all of them are roses except two , all of them are tulips except two and all of them are daisies except two?
A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will
Armature coil is short circuited by brushes when it lies
To achieve sparkless commutation brushes of a D.C. generator are rockedm ahead so as to bring them
Hydrogen peroxide can be neutralized in our body by