An integrator type DVM (digital voltmeter) contains a 100 kΩ resistor and 1 μF capacitor. If the voltage applied to the integrator input is 1 volt, what voltage will be present at the output of the integrator after 1 second?

This question was previously asked in
ESE Electrical 2015 Paper 1: Official Paper
View all UPSC IES Papers >
  1. 1.1 V
  2. 1 V
  3. 10 V
  4. 100 V

Answer (Detailed Solution Below)

Option 3 : 10 V
Free
ST 1: UPSC ESE (IES) Civil - Building Materials
6.5 K Users
20 Questions 40 Marks 24 Mins

Detailed Solution

Download Solution PDF

Resistance (R) = 100 kΩ

Capacitance (C) = 1 μF

Integrator input voltage (V) = 1 V

For an integrator type DVM, output voltage is given by

\({V_0} = - \frac{1}{{RC}}\mathop \smallint \limits_0^t {V_i}dt\)

\( = - \frac{1}{{100 \times {{10}^3} \times 1 \times {{10}^{ - 6}}}}\mathop \smallint \limits_0^1 1dt = - 10\;V\)

Latest UPSC IES Updates

Last updated on Jul 2, 2025

-> ESE Mains 2025 exam date has been released. As per the schedule, UPSC IES Mains exam 2025 will be conducted on August 10. 

-> UPSC ESE result 2025 has been released. Candidates can download the ESE prelims result PDF from here.

->  UPSC ESE admit card 2025 for the prelims exam has been released. 

-> The UPSC IES Prelims 2025 will be held on 8th June 2025.

-> The selection process includes a Prelims and a Mains Examination, followed by a Personality Test/Interview.

-> Candidates should attempt the UPSC IES mock tests to increase their efficiency. The UPSC IES previous year papers can be downloaded here.

Get Free Access Now
Hot Links: teen patti joy 51 bonus teen patti joy apk teen patti jodi teen patti rummy 51 bonus