Question

12 A student two resistor 2 and 30. She has to
put one of them in place of R2 as shown in the circuit. The
current that she needs in the onlire circuit is exactly 9A
Show by commutation witch of the two puestom ang should
chooni​

Answer 1

Answer:

Students has to put  2 ohm  Resistor in place of R2

Explanation:

Battery Source = 12 V

=> V = 12 V

Total Current = 9 A

Total Resistance = R  

V = IR

=> 12  = 9R

=> 4 = 3R

=> R = 4/3  

R1  & R2 are in Parallel

Hence

1/R   =  1/R1  + 1/R2

=> 1/(4/3)  = 1/4  + 1/R2

=> 3/4  = 1/4 + 1/R2

=> 2/4  = 1/R2

=> 1/2 = 1/R2

=> R2  = 2

Students has to put  2 ohm  Resistor in place of R2

Explanation:

Answer 2

Answer:

correct ANSWER ⬆️⬆️⬆️⬆️⬆️