When an electron breaks a covalent bond and moves away:-

I _CO in a diode and I _CBO in a transistor consist of majority carriers:-

The work function for the oxide coated emitter material is:-

The magnetic flux inside the exciting coil is same as on its outside surface:-

The commonly used material for shielding magnetism is:-

The bridge used for the measurement of the value of the capacitance is:-

Which junction transistor is preferred for high input and low output impedance:-

An air gap is usually inserted in magnetic circuits to:-

An electrolytic capacitor is made to provide:-

The lines of force due to charges particles are:-

Dielectric strength of material depends on:-

Hysteresis loss least depends on:-

In a normally biased NPN transistor the main current crossing the collector junction is:-

Which one is not a vector:-

During the charging of a lead acid cell;-

Which electron emission process is widely used in vacuum tubes:-

When 4 volt emf is applied across a 1 Farad capacitor , it will store energy of:-

The uniform magnetic field is the field in which all lines of magnetic flux are parallel:-

A capacitor charged to 200 V has 2000. The value of capacitance will be:-

Dielectric strength of medium increase with rise in temperature:-

In a PNP transistor , with normal bias the emitter junction:-

Electrolytic capacitor must be connected to the correct polarity:-

The SCR is a silicon diode rectifier with a gate control electrode:-

The capacity of a battery is expressed in terms of:-

Which amplifier circuit using junction transistor has the best gain;-