The probability of the closing of the ith relay in the circuits shown in the circuit document in the test 2 folder is given by phi = 1,2,3,4,5. If all relays function independently? 1what is the probability that a current ows [can get from \"Start\" to \"End\"} for the respective circuits? Also, for circuit B, what is the probability that relay 3 is closed, given that a current ows. Simplify your expressions as much as possible