Berapakah nilai hambatan pengganti rangkaian berikut?

A. 1/hambatan paralel = 1/6 + 3/6 = 4/6
4/6 = 1/hambatan paralel
hambatan paralel = 6/4 = 3/2 = 1,5
hambatan pengganti= 1,5 + 8,5 = 10 Ohm

b. 1/hambatan paralel = 1/50 + 1/50 = 2/50
2/50 = 1/hambatan paralel
hambatan paralel= 50/2 = 25
hambatan pengganti = 25 Ohm