Two isolated conducting spheres are separated by a large distance. sphere 1 has a radius of 20 cm and an initial charge 30 nc while sphere 2 has a radius of 60 cm and an initial charge 70 nc. a very thin copper wire is now connected to the spheres to allow charge to flow between them. how much charge will be transferred from sphere 2 to sphere 1? (note that the charge transferred can be positive, negative or zero

96.77 amp

explanation:

rl = 250/100 = 2.5 ohms.

egl = 250 + (100 × 0.1) + 2 = 262 v.

at 700 r.p.m., eg2 = 262 × 700/1000 = 183.4 v.

if ia is the new current, then eg2 - 2 - (ia × 0.1) = 2.5 ia

which means this will give ia = 96.77 amp.

if i am correct, your answer choices are:

a. the temperature remains constant

b. the temperature increases at a constant rate

c. heat flows at a constant rate into the system

d. heat flows at a constant rate out of the system

e. no heat flows into or out of the system

if so, then the answer is e. no heat flows into or out of the system.