GENERAL KNOWLEDGE

GK

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If we have two resistors (
A
13
B
3.33
C
5
D
50
Explanation: 

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.

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