A step up transformer is connected on the primary side to a rechargeable battery which can deliver a large current. If a bulb is connected in the secondary, then

A step up transformer is connected on the primary side to a rechargable battery which can deliver a large current. If a bulb is connected in the secondary, then

In a step-up transformer, in comparison with the secondary the primary coil has __

In a step-up transformer the voltage in the primary is 220 V and the currrent is 5A . The secondary voltage is found to be 22000V . The current in the secondary (neglect losses)is

A step-down transformer is connected to main supply 200V to operate a 6V , 30W bulb. The current in primary is

A step up transformer connected to a 220V AC line is to supply 22 kV for a neon sign in secondary circuit. In primary circuit a fuse wire is connected which is to blow when the current in the secondary circuit exceeds 10mA . The turn ratio of the transformer is

In a transformer, the number of turns in primary and secondary are 500 and 2000 respectively. If current in primary is 48A , the current in the secondary is

A step down transformer is used to reduce the main supply of 200 V to 11 V. If the primary draws a current of 5 A and the secondary 90 A, what is the efficiency of the transformer ?

The primary and secondary voltage of an ideal step down transformer are 200 V and 25V respectively. The secondary is connected to a device, which draws a current of 2A. What is the current in the primary?