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MCCB stands for Moulded Case Circuit Breaker. While comparing with the Miniature Circuit Breaker ( MCB ) the rating of an MCCB is higher and is having short circuit and overload protection. This circuit breaker is an electro-mechanical device which guards a circuit from short circuit and over current. They offer short circuit and over current protection for circuits ranges from 63 Amps-3000 Amps. The primary functions of MCCB is to give a means to manually open a circuit, automatically open a circuit under short circuit or overload conditions.

The voltage regulation of the transformer is the percentage change in the output voltage from no-load to full-load.
Since power factor is a determining factor in the secondary voltage, power factor influences voltage regulation. This means the voltage regulation of a transformer is a dynamic, load-dependent number.
When the load is leading, the output voltage can be greater than the no-load value. So at leading power factors the regulation may get negative as well as positive.
But from unity power factor to lagging power factors the output voltage will be always lesser than no-load value and hence the regulation will become positive.

The motor used in a ceiling fan is split phase single phase induction motor. It is provided with an auxiliary stator winding called starting winding in addition to main or running winding. Both the windings are put in parallel. The purpose is to get two different currents sufficiently displaced in phase from each other so that a revolving field approximating that of two phase machine is produced. The diagram shows the split phase induction motor.

Opamp is a high gain voltage amplifier. Opamps are differential amplifiers that is proportional to the difference of 2 input voltages. One terminal is inverting and the other terminal is non-inverting. The power dissipated from an op-amp is 50mW.

ICs are made up of Silicon. A set of electronic circuits are integrated onto a single chip called an IC.

Audio signals are analog signals. Linear IC allows us to process analog signals. This the answer is option (a).

Sodium vapor lamps emit yellow light. They are very efficient, and provide high-intensity light suitable for illuminating large, open areas. The table below shows the color produced by different vapour lamps.

Vapour lamp	Colour
Chlorine	Green
Nitrogen	Red
Hydrogen	Blue
Sodium	Yellow
Neon	Orange
Mercury	White

Lithium-ion battery is the older and most popular technology for cell phone batteries. The only real drawback of Lithium Ion cell phone batteries is that they are expensive. However, they have higher energy density compared to Li-Polymer. The Cell will be usually rated to 3.6 V.

MINI DIP is generally used for lesser number of inputs and outputs.

In hybrid circuits, components are attached to a ceramic substrate and interconnected by means of either metallization pattern

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