A 50 $\mathrm { k } \Omega$ Potentiometer Is Connected Across a 15 V Source

Multiple Choice

A 50 $\mathrm { k } \Omega$ potentiometer is connected across a 15 V source. If the voltage from the wiper to the lower end of the potentiometer is 3.2 V , what is the resistance of that lower part?

A) 39.3 $\mathrm { k } \Omega$
B) 50 $\mathrm { k } \Omega$
C) 10.7 $\mathrm { k } \Omega$
D) 0