If the amount of current flowing through the single resistor R is 1 4.5 A while

Question

If the amount of current flowing through the single resistor R is 1 4.5 A while the current flowing through the other resistor R and the 10 resistor is,=1.5 A , what is the resistance Rin the figure? (Figure 1) Constants You may want to review (Page,737-740 . Express your answer using three significant figures. View Available Hint(s) R= 5.00 Previous Answers Correct Part D What is the emf of the battery in the figure? Express your answer using three significant figures. View Available Hint(s) Figure 1 of 1 Hint 1. How to approach the problenm Remember that the left branch, which consists of just the battery, is also connected in parallel with the other two 102

Explanation / Answer

Total current I1 + I2 =4.5 +1.5 =6 A

Effective resitance in the circuit , If R=5 ohm

= 15x 5 /(15+5) = 3.75 ohm (15 , 5 are in parallel, 15 =10+5 , both are in series )

Total emf = total current x effective resistance

E = 6 x 3.75 = 22.5 V

The voltage across I1 and I2 is 22.5 V, since it s connected parallel.

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