What is the direction of null vector?
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Why does water boil at 100oC ?
Why is it important not to expose a patient to x-rays for too long?
Advantage of fixed pulley?
Tell me how are amps and watts related?
we know when two atom combine,the electrions are in valance band,but in case of semiconductor doner or acceptor level are above of v.. whyb
Why mercury rises in a barometer ?
why ac is attractive and dc is repulsive?
What is audio frequency?
When thomas edison was promoting the wide use of direct current, this personal enemy of edisons was the chief proponent and expert in alternating current?
Tell me what is pascal s principle?
Explain what is different between secondary electron image and back scattered electron image?
Explain the Opaque ?