Question

3. Two resistances R1 and R2 yield the same equivalent resistance when they are connected in
parallel or in series. If R1 = 3 Ohms, the value of R2 is

a. 3 Ohms
b. 6 Ohms
c. 1/3 Ohms
d. 1/6 Ohms​

Answer 1

3 ohm as we know

R¹ + R²=Req

3ohm + R² = Req

let R¹ be X

let R² be X because R¹ and R² have equal resistence

X=3 ohm (given)

X+X =Req

2X=Req

2(3)=Req

Req = 6

therefore R¹ +R²= Req

3+R²=6

R²=6-3

R²=3