When a resistor of resistance R is connected across a cell, the terminal p.d of the cell is reduced to three-quarters of its e.m.f. The internal resistance of the cell is expressed as? by Sunday | Aug 28 | Physics WAEC | 0 comments A. R/4 B. R/3 C. R/2 D. 3R/4 E. 3R Correct Answer: Option B – R/3 Users Also Read These:A cell of e.m.f. 1.5 V and internal resistance of…A cell of e.m.f. 1.5V and internal resistance of…A cell of e.m.f. 1.5V is connected in series with a…A battery of e.m.f. 12.0V and internal resistance…A cell of e.m.f 12V and internal resistance 4Ω is…