Manipal MET2012PhysicsCurrent Electricity
A voltmeter of resistance 998 is connected across a cell of emf 2 V and internal resistance 2 . The potential difference, across the voltmeter is
Options
- A1.99 V
- B3.5 V
- C5 V
- D6 V
Correct answer
A. 1.99 V
Step-by-step solution
From Ohm's law i= E R+r = 2 998+2 =2 10⁻³ ~A Potential difference across the voltmeter is aligned V & =i R= (2 10⁻³ ) 998 & =1.996 ~V aligned