PHYSICS PLZ HELP!!!
posted by mink .
What is the minimum number of 70 Ohms resistors that must be connected in parallel to produce an equivalent resistance of 13 Ohms or less?

1/13>=k/70
70=>13k
k>70/13
k>6 
If you have a curcuit consisting of 4 resistor of egual resistance senses and toltal voltage across all of them is 17v .what is the voltage across each of them?