1.

Four resistors are connected in parallel. Fifteen mA flows through resistor R. If the second resistor is 2 R , the third resistor 3 R , and the fourth resistor 4 R , the total current in the circuit is

A. 60 mA
B. 15 mA
C. 135 mA
D. 31.25 mA
Answer» E.


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