The maximum power dissipated by a 100Ω resistor in a circuit is 4W. Calculate the voltage across the resistor. By: Sunday|Published on: May 22|Categories: Physics WAEC| 0 comments A. 10V B. 20V C. 25V D. 400V Correct Answer: Option B B. 20V Explanation V²=PR=V=√4×100 = 20V Users Also Read These:A cell of internal resistance r is connected to an…A 120Ω resistor dissipates 8 kJ of heat in 20s.…A galvanometer of internal resistance 50Ω and full…A resistor connected to a 12V battery draws a…When an alternating current given by I = 10sin…SEE ALSO In semi-conductor, the carriers of current at room temperature are?