MPSC PYQScienceElectricity Numerical Worksheetenglish
If two resistors are connected in parallel their resultant resistance is 45 Ω and if the same two resistors are connected in parallel their resultant resistance is 10 Ω Which of the following are the resistances?
A.25 Ω , 20 Ω
B.28Ω, 7Ω
C.10 Ω, 20 Ω
D.30 Ω ,15Ω
Correct answer: D