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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
project specifications require a relative compaction of 95 modified proctor construction of a highway embankment requires 10000-yd3 of fill
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
if a current of 20a flows for five minutes find the quantity of electricity transferred quantity of electricity q it 20 x 5 x 60 6000c
soil at a borrow area has a total unit weight of 120-pcf and a water content of 15 percent the soil from the borrow area will be used as
a contractor was awarded a contract to excavate and haul 200000-yds3 of silty clay uscs classification ml with a bulking factor of 30 the
unit to measure the electric charge qthe unit used to measure the quantity of electrical charge q is called the coulomb
define electric currentif an electric pressure or voltage is applied across any material there is a tendency for electrons to move in a certain
20 cells with emf 145v and internal resistance 05omega for each cells is linked 4 rows which every rows having of 5 cells in series load resistance
a proposed building site requires 135000-ft3 of imported fill a borrow site is located 5-miles northeast of the project site where the soil has a
a battery having of 5 cells with emf and internal resistance of every cell is 15v and 025omega connected in series if the current flow by load
one battery having of eight cells in parallel emf and internal resistance of every cells is 15v and 04omega find the value of current if an external
30000-yd3 of banked soil from a borrow pit is stockpiled before being trucked to the jobsite the soil has 28 swell and shrinkage of 18 the
one battery having of four cells connected in series emf of each cell is 145v and internal resistance of 004omega if a load resistance of 5omega is
an earthwork contractor encountered a location within the borrow area where the geological conditions changed instead of encountering 100 cubic
ten 15v cells in series each cells having an internal resistance of 03omega are connected series to a load of 25omegadetermine ithe current flowing
a battery having of five cells in series each cell is 25v and internal resistance is 005 omega a battery is linked to the load resistance of 15omega
a battery having of 12 cells are divided in three group which each group having of four cells in series the three groups are joined in parallel the