A circuit is constructed that has a 6.00 V battery connected across a 1900.0 ? r

Question

A circuit is constructed that has a 6.00 V battery connected across a 1900.0 ? resistor. Determine the following parameters of this circuit:

circuit is constructed that has a 6.00 V battery connected across a 1900.0 Ohm resistor. Determine the following parameters of this circuit: How many electrons flow through the circuit per second? How many moles of electrons will flow through the resistor if the circuit is operated for 44.18 min? How many joules are produced if the circuit is operated for 44.18 min?There is a hint available! ew the hint by clicking on the How many watts would be produced from this circuit if the 6.00 V battery were replaced with a 459 V battery?

Explanation / Answer

we have current= V/R

=6/1900 A

now current= charged transfered/time taken

so in 1 sec charged transfered is 6/1900 Coulomb

but 1 electron have -1.6*10^-19 coulomb

so no of electrons transferred in 1 sec is 6/1900*e

=1.97*10^16 e/s

b). total no of electrons travelled in this time which is 2650.8 sec is

1.97*10^16*2650.8

so moles of electrons = 1.97*10^16*2650.8/(6.022*10^23)

= 8.67*10^-5 mole

c).power= V^2/R

=36/1900 W

so energy produced= P*t

= 36/1900*(2650.8)

= 50.2 J

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