Electrical Engineering Quiz

A sensitive galvanometer produces  large deflection for a :-

Carbon rods are used in wet and dry cells:-

Most of the high voltage  transmission lines in India  are:-

A battery cell having an emf of 2.2 volts and an internal resistance of 0.03 ohms is connected to an external resistance of 0.10 ohms. The useful power as;-

The parabolic antenna is used in satellite tracking because it has :-

Resistance of a wire is r ohm. The wire stretched to double its length , then its resistance in ohm is:-

The material used for armour of high voltage cables is:-

A potentiometer may be used  for :-

The power rating of a 470 ohm resistor carrying a current of 40 mA should be:-

In large impulse generator , the spark gaps  are generally;-

Which is not  necessarily the advantage of D  motor over AC motors;-

Sparking at the commutator  of a DC motor may result in :-

In Edison cell the positive plates consist of:-

Which can have opposite or negative charge:-

The co ordination  number of a simple cubic  structure is :-

Which of the following material  is not used for  transmission and distribution of electrical power:-

At parallel resonance, the ratio L/C is;-

310 km line  is considered  as;-

In hydro power plant , the graph between discharge and  time is known as:-

On which factor does the resistivity of a material depends:-

The pointer of an indicating instrument should be ;-

Series capacitance voltmeter were used  with cascade transformer  for measuring RMS values up to:-

The skin effect  of a conductor  will reduce  as the  resistivity of conductor  material increase:-

Cells are connected in parallel to _________ the current capacity:-

The conductor of the overhead  lines are:-