A transformer consisting of 300 turns in the primary and 150 turns in the secondary gives output power of 2.2 kW.If the current in the secondary coil is 10 A, then the input voltage and current in the primary coil are :
A 100% efficient transformer has 100 turns in the primary and 25 turns in its secondary coil. Of the current in the secondary coil is 4 amp, then the current in the primary coil is
A transformer consists of 500 turn in primary coil and 10 turns in secondary coil with the load of 10Omega. Find out current in the primary coil when the voltage across secondary coil is 50 V.
A transformer consists of 500 turn in primary coil and 10 turns in secondary coilk with the load of 10 Omega Find out current in the primary coil when the voltage across secondary coil 50V.
A transformer has 1500 turns in the primary coil and 1125 turns in the secondary coil. If a voltage of 200V is applied across the primary coil , then the voltage in the secondary coil is :
In a transformer, number of turns in the primary coil are 140 and that in the secondry coil are 280. If current i primary coil is 4A, then that in the secondary coil is
A transformer having efficiency of 80% is working on 200 V and 2 kW power supply. If the current in the secondary coil is 8A, the voltage across the secondary coil and the current in the primary coil respectively are
A transformer having efficiency of 90% is working on 200 V and 3 kW power supply. If the current in the secondary coil is 6A , the voltage across the secondary coil and current in the primary coil respectively are
