Posted by Carleigh on .
A transformer has 25 turns in the primary coil and 200 turns in the secondary coil. If 12 V is connected to the primary coil and a 20-Ù device is connected to the secondary coil, calculate the current in Amperes passing through the device
Physical Science Help! -
The voltage applied to the secondary circuit will be 12*(200/25) = 96 volts
Use ohms law for the device current.