Question
Mon October 17, 2011

will we associate electricity with the flow of electrons only?

Tue October 18, 2011
Generally electric current is associated with the flow of electric current.

Electricity is a general term encompassing a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning, static electricity, and the flow of electrical current in an electrical wire. In addition, electricity encompasses less familiar concepts such as the electromagnetic field and electromagnetic induction.

Related Questions
Wed January 18, 2017

A cell of emf E and internal resistance r is connected to two external resistance R1 and R2 and a perfect ammeter.The current in the circuit is measured in four different situation: (i)without any external resistance in the circuit (ii)with resistance R1 only (iii)with Ri and R2 in series combination (iv)with R1 and R2 in parallel combination The currents measured in the four cases are 0.42A,1.05A,1.4A and 4.2A,but not necessarily in that order.Identify the currents corresponding to the four cases mentioned above.

Thu November 24, 2016

Expert, I am a CBSE class 12 student. My query is regarding which book I should follow. My teachers are following different guides and the derivations they teach are different from those of the text books. Moreover textbook derivations are short and complicated.Which one should I follow? My doubt is with respect to CBSE class 12 examination.

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