NEET Questions Solved

PMT - 1985

The e.m.f. of a cell is E volts and internal resistance is r ohm. The resistance in external circuit is also r ohm. The p.d. across the cell will be 

(1) E/2

(2) 2E

(3) 4E

(4) E/4

(1) Since both the resistors are same, therefore potential difference =V+V=E

V=E2

Difficulty Level:

  • 59%
  • 25%
  • 10%
  • 8%
Crack NEET with Online Course - Free Trial (Offer Valid Till September 17, 2019)