alleryA cell of emf 2 V and internal resistance 0.1 Ω drives a current of 0.5 A. Its terminal potential difference is:
A0.05 V
B2.00 V
C2.05 V
D1.95 V
Answer & Solution
Correct answer: D. 1.95 V
Terminal voltage V = ε − Ir = 2 − 0.5×0.1 = 1.95 V.
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: