Advertisements
Advertisements
Question
A voltmeter has a resistance of 30 Ω. What will be its reading, when it is connected across a cell of emf 2 V having internal resistance 10 Ω?
Numerical
Advertisements
Solution
Data: E = 2V, r = 10 Ω, R = 30Ω
The voltmeter reading, V = IR
`= ("E"/("R + r"))"R"`
`= (2/(30 + 10))30`
`= (2/40)30`
= 1.5 V
shaalaa.com
Is there an error in this question or solution?
