# The value of flux involved in the e.m.f. equation of a transformer is ?

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The value of flux involved in the e.m.f. equation of a transformer is maximum value.

## Related questions

The path of magnetic flux in a transformer should have?

The e.m.f. induced in the primary of a transformer:  (A) is in phase with the flux (B) lags behind the flux by 90 degree (C) leads the flux by 90 degree (D) is in phase opposition to that of flux

The maximum flux in a transformer is φm when primary voltage is V and the frequency is f. If the primary voltage is 2 V and frequency is f/2, the flux will be (a) 4 φm (b) 0.25 φm (c) φm (d) 0.5 φm

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 induced e.m.f. in the armature conductors of a d.c. motor is?

The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be?

As there is no back e.m.f. at the instant of starting a D.C. motor, in order to prevent a heavy current from flowing though the armature circuit?

What is the EMF equation of the transformer?

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

The hum in a transformer is mainly attributed to?

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

The efficiency of a transformer, under heavy loads, is comparatively low because?

The voltage transformation ratio of a transformer is equal to the ratio of?

In a Synchronous motor, the magnitude of stator back e.m.f (Eb) depends on

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

"In any network containing more than one sources of e.m.f. the current in any branch is the algebraic sum of a number of individual fictitious currents (the number being equal to the number of sources of e.m.f.), each of which is due to separate action of each source of e.m.f., taken in order ... sources of e.m.f. are replaced by conductors, the resistances of which are equal to the internal resistances of the respective sources". The above statement is associated with?

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