Answer / mayur devadiga

A) Inductance

Answer / badshah hussain rizvi

yes its answer is inductance because inductance opposes any
change in current.so when load switched off some current
still flows which leaks due to incomplete path.

Answer / kj

d.) None

Sparking occurs because a flow of current is broken. When
the 2 contacts are very close the air is ionized and will
conduct. As the contacts open further the arc cools and the
air loses the ability to conduct.

With AC it may be seen that sometimes a small switch sparks
and sometimes it does not. It will depend on the voltage at
the time of opening. At the peak of the sine wave it will
be a big spark at the zero line no spark.

what will happen if we pass a dc current through a ac bulb of 60 watt.The dc current is half ac one

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0 Answers   Suzlon,

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ITI r/tv trade APPLY (J.T.O VACANCEY) ALSO INCLUD AITT ELECTRONIC,WRITEEN XAM DONE 23.03.10 BUT NO RESPONCE WHY ANATHER ID gopal_gh007@rediffmail.com

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How voltage step down is done?

3 Answers   IOCL,

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What does a permanent magnet generator do?

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