GK
PHYSICS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
13
|
|
3.33
|
|
5
|
|
50
|
Detailed explanation-1: -When two resistors R1 and R2 are connected in parallel then their parallel combination is Rp=R1R2/R1+R2 .
Detailed explanation-2: -Two resistance r1 and r2 (r1< r2) are joined in parallel. The equivalent resistance R is such that 1 R > r1 + r2 2 R > √r1 +√r2 3 r1 < R < r2 4 R < r1. Q.
Detailed explanation-3: -AI Recommended Answer: Calculate the effective resistance. 3. The effective resistance is 10 x 2 = 20 ohms.
Detailed explanation-4: -When resistors R1 and R2 are connected in series across a battery of potential difference V, the power dissipated by the resistors are P1 and P2 respectively. When they are connected in parallel across a battery of potential difference E, the power dissipated is P3 and P4 respectively.