<span title="Physics-Electricity!!!!!!!!!!!!!?">Physics-Electricity!!!!!!...</span>

Question

Which gives a higher voltage difference: a square shaped battery that provides 9.0volts OR a set of 6 cells that give altogether 9.0 joules per coulomb of charge that flows through them?

Please give reasoning to why you chose that answer

Answer 1

The voltage (PD) would be the same for both, howver with the 6 cells you would get a lower resistance, therefore a higher current.

There is a lower resistance as there are more pathways that the same number of electrons can take.

Answer 2

You cant tell.  The amount of work done depends on the resistance, which is not given.

Answer 3

&quot;9.0 joules per coulomb of charge&quot; is a very strange number.

take an interval of one second:

1 coulomb/sec is 1 amp

9 joules/sec is 9 watts.

so P = EI

9 = E*1

E = 9 volts.

so they are the same, both generate 9 volts.

.

Answer 4

Do your own homework.

Answer 5

The set of 6 cells, as specified by you, will impart 9v when supplying any current .  In the case of the 9v battery it&#039;s not clear at what load (current) the 9v applies - it may even be the open circuit voltage.  However the battery voltage will fall as load (amperes) is increased (due to internal resistance), As load is increased the cells emerge as the ever clearer winner since they have no internal resistance.