alleryTwo resistors R₁ and R₂ in PARALLEL have equivalent resistance:
AR₁ + R₂ sum directly
BR₁ R₂ / (R₁ + R₂)
C(R₁ + R₂) / 2 mean
DR₁ − R₂ difference
Answer & Solution
Correct answer: B. R₁ R₂ / (R₁ + R₂)
1. Same V across both; currents add.
2. 1/R_eq = 1/R₁ + 1/R₂ ⇒ R_eq = R₁ R₂ / (R₁ + R₂).
3. R_eq is always LESS than the smallest resistor in the parallel combination.
_Source: syllabus Physics Ch 3 §3.10 Series and Parallel_
Keep practising Current Electricity
Browse all Current Electricity questions for NEET UG, or explore more Physics topics.
Related questions
Current electricity numbersThe resistance inside a cell itself is called its:NEET · Physics · Kirchhoff's LawsTap what affects resistanceHalving the cross-section area of a conductor makes resistance:Resistance depends on the material and on the conductor's:The quantity denoted by sigma, the inverse of resistivity, is:Kirchhoff's junction rule for currents I1, I2 into a junction gives: