The current in the primary coil of a transformer is 2.5A....
The current in the primary coil of a transformer is 2.5A. If the coil has 50 turns and the secondary250 turns, calculate the current in the secondary coil. Neglect energy losses in the transformer
0.2A
0.5A
2.5A
5A
12.5A
Correct answer is B
IsIp=npns,Is=Ipnpns=2.5×50250⇒0.5A
In a discharge tube, most of the gas is pumped out so that electricity is conducted at? ...
The force between molecules of the same substance is termed ...
Efficiency of conduction in liquids and gases compared to solids is ...
Which of the following statement about the electromagnet shown above is correct? ...
Radio carrier waves are generated by causing electrons to oscillate rapidly in...