The total resistance of a parallel circuit is always （）.
1、The resistance of a conductor varies （
The resistance of a conductor varies （）Adirectly as its length and inversely as its cross-sectional areaBinversely as its length and directly ...
2、The resistance of electric wire will d
The resistance of electric wire will decrease as its （）Alength increasesBcross-sectional area increasesCtemperature increasesDpercent of metallic purities increase
3、● Consumption of the total life-cycle
● Consumption of the total life-cycle effort in software maintenance is （71） that in software development．（71）Aless thanBlarger thanCequal or less thanDequal or larger than
4、The total power consumed in a parallel
The total power consumed in a parallel circuit is （）Athe sum of the powers used in each load (resistor)Bdivided by the number of loadsCalway...
5、The centre of lateral resistance is（）.
The centre of lateral resistance is（）.Athe center of the hydrodynamic forces acting on the underwater hull to resist the effect of the windBt...
6、When the prime movers of two parallele
When the prime movers of two paralleled generators are equipped with mechanical- hydraulic governors, and are operating within their designed ran...