ExamPlay Dark Logo
サインイン

JAMB - Physics (2010 - No. 41)

A cell of e.m.f 12V and internal resistance 4Ω is connected to an external resistor of resistance 2Ω. Find the current flow.
5 A
4 A
3 A
2 A

説明

I = E/(R+r)
= 12/6 = 2A

コメント (0)

広告