# No-load current in a transformer?

19 views

No-load current in a transformer lags behind the voltage by about 75°.

## Related questions

A no-load test is performed on a transformer to determine?

In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of?

The inrush current of a transformer at no load is maximum if the supply voltage is switched on  (1) at peak voltage value (2) at zero voltage value (3) at half voltage value (4) at 0.866 time voltage value

For a transformer, operating at constant load current, maximum efficiency will occur at?

In a given transformer for a given applied voltage, losses which remain constant irrespective of load changes are?

The maximum load that a power transformer can carry is limited by its?

When secondary of a current transformer is open-circuited its iron core will be?

The secondary of a current transformer is always short-circuited under operating conditions because it?

The no-load current drawn by transformer is usually what per cent of the full-load current ?

In a transformer the resistance between its primary and secondary should be?

If a transformer is continuously operated the maximum temperature rise will occur in?

The hum in a transformer is mainly attributed to?

The path of magnetic flux in a transformer should have?

No load current in a transformer: (A) lags the applied voltage by 90° (B) lags the applied voltage by somewhat less than 90° (C) leads the applied voltage by 90° (D) leads the applied voltage by somewhat less than 90°

In case of a power transformer, the no load current in terms of rated current is (1) 10-20% (2) 15-30% (3) 2-6% (4) 30-50%

Reduction in core losses and increase in permeability are obtained with transformer employing?

what do not change in transformer?