Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
static electricity1 there are two types of charges positive and negative2 like charges repel and unlike charges attract each other3 charged bodies
explain joules lawwork done is directly proportional to the heat
alternating current acsuch a current can be obtained if a resistor is linked in series with a source of alternating voltage this current alters its
direct current dcsuch a current can be getting by connecting the two ends of a conductor to the terminals of the battery this current doesnt change
conventional currentearlier scientists had no knowledge of the concept of electron so the developed the convention still in use that the direction
characteristics of resistance in paralleldifferent amount of current passing by each resistance ie i i1 i2 i3 i4 the potential difference across
resistance in parallelwhen two or more resistance are linked in such a way that one end is of the every resistor is connected to one terminal of the
characteristics of resistance-similar amount of current passed by each resistance ie i i1 i2 i3 i4 the sum of potential difference across
resistance in seriesin such a combination the resistors give a single path to the passage of current and similar current passes by each of the
combination of resistancein electric circuits the resistors are interlinked in two waysresistance in seriesresistance in
electric circuitthe path by which an electric current passed is known as an electric circuitthe electric appliances are known as
ohms lawthe current passing by a conductor is directly proportional to the potential difference applied across its end given the temperature and
factors on which resistance dependsresistance of the conductor depends on the following factorsnature of the conductorlength of the conductorarea of
1 ohmif a potential difference of 1 volt is applied across the ends of a conductor and the resulting current flowing by the conductor is 1 ampere the
resistanceresistance is the opposition to the motion of electrons this arises as a result of collision of moving electronsthe unit of resistance is
1 ampere1 ampere current is supposed to be flowing in a conductor if one coulomb of charge flows across section of the wire in one
electric currentelectric current may be described as the rate of flow of chargeiqtwherei electric currentq charget timethe unit of current is
electromotive force emfa force which derives the electric current is known as electromotive forceorthe energy needed to drive the charge around the
1 faradone farad is described as the capacity of that capacitor which keeps a charge of 1 coulumb if the potential difference among the plates is one
unit of capacitythe unit of capacity of a capacitor is known as farad f it is given by a relationq
di - electricthe insulator used among the plates of a capacitor is known as
capacitora capacitor is a device used to kept charge and electrical energy the stored electrical energy in a capacitor can be utilized according to
1 volt potential difference among two points will be 1 volt if 1 joule of work is needed to move a ve charge of coulumb from 1 point to
electric potentialelectric potential verifies the flow of charge its unit is volt represented as
gold leaf electroscopea gold leaf electroscope is a device that can be used for notice charge by the use of this device we can also detect whether a