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thevenin s theoremthevenins theorem statesany linear circuit containing several energy source and resistances can be replaced by just a single
nodal analysis procedure1 verify the number of common nodes and reference node within the network2 assign current and its direction to every
nodes analysisanalysis using kcl to solve for voltages at every common node of the network and as determines the currents by and voltages across
mesh analysis procedure1 assign a distinct current to every closed loop of the network2 apply kvl around every closed loop of the
mesh analysisanalysis using kvl to solve for the currents around every closed loop of the network and hence verify the currents through and voltages
name the effects of electric currentthere are three effects of electric current-a magnetic effect b chemical effect c heating
electrical energyif the power is measured in watts and the time in seconds then the unit of energy is watt- seconds or
electrical powerpower p in an electrical circuit is given by the product of potential difference v and current i the unit of power is the watt
explain current divider rulecurrent flow through at every resistor that connected by parallel can be find by using current divider rules
define voltage divider rulevoltage drop at every resistor that connected by serial can be search by using voltage divider rules
states ohms lawohms law describes that the current i flowing in a circuit is directly proportional to the applied voltage v and inversely
find the resistance of 1 km of copper cable having a diameter of 10 mm if the resistivity of copper is 0017 x 10-6
calculate the cross-sectional area in mm2 of a piece of aluminium wire 100 m long and having a resistance of 2omega take the resistivity of aluminium
find the resistance of 800 m of copper cable of cross-sectional area 20 mm take the resistivity of copper as 002
some wire of cross-sectional area 1mm2 has a resistance of 20omega determinea the resistance of a wire of the same length and material if the
the resistance of a 2 m length of cable is 25 verifya the resistance of a 7 m length of the similar cable andb the length of the same wire when the
verify the resistance of 1200 m of copper cable having a diameter of 12 mm if the resistivity of copper is 17 x 10-8
the resistance of 15 km of wire of cross-sectional area 017 mm2 is 150omega determine the resistivity of the
calculate the resistance of a 2 km length of aluminium overhead power cable if the cross-sectional area of the cable is 100 mm2 take the resistivity
the resistance of a 5 m length of wire is 600omegadetermine a the resistance of an 8 m length of the same wireb the length of the same wire
the resistance of an electrical conductor depends on 4 factors these being a the length of the conductor b the cross-sectional area of
explain multimetera multimeter or universal instrument may be used to measure voltage current and
what is ohmmeteran ohmmeter is an instrument for measuring
define a voltmeter a voltmeter is an instrument used to measure pd and must be linked in parallel with the part of the circuit whose pd is
what is ammeteran ammeter is an instrument used to calculate current and must be connected in series with the