What is the equivalent resistance of a circuit that contains four 75.0 resistors connected in parallel with a 100.0 v battery? a. 18.8 b. 175.0 c. 300.0 d. 5.32

To get the total resistance in a parallel circuit, you need to remember that unlike in a series, you do not just merely add the resistances. You need to get the reciprocal first of each resistance and add them together. 



After adding them, you will get the reciprocal again and then compute for the value. The problem says that there are 4 resistors in the circuit that have a resistance of 75.



Add up the numerator and copy the denominator:



Then get the reciprocal to get the total resistance:



The answer to your question then is A. 18.8.