Question
The measurement of voltmeter in the following circuit is
2.25 V
4.25 V
2.75 V
6.25 V
Solution
A.
2.25 V
Resistance of voltmeter and 60 Ω are in parallel.
∴ Equivalent resistance =
=
= 24 Ω
For the whole circuit
Current I =
=
I = A
The voltmeter reads potential difference across 60 Ω
∴ Voltmeter reading = I × Req
=
= V
= 2.25 V
