Question
Download Solution PDFThe device used to measure potential difference between two points in volts is known as ____________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 3, i.e. Voltmeter.
Concept:
- Electric current is defined as the rate of flow of charge or electron, so its direction is the flow of positive charge.
- The SI unit of the electricity is Ampere(A) and it is a scalar quantity.
- Resistance is the opposition delivered by the conductor in which current flows through it.
- A device that is used to measure electric current in a circuit is called an ammeter. The resistance of an ideal ammeter is always Zero and is always connected in the circuit in series.
- A voltmeter is a device that is used to measure the potential difference between the two points in a circuit. The resistance of an ideal voltmeter is infinite.
- A galvanometer is a device that is used to detect and measure small electric currents in any circuit. It can measure current up to 10-6 Ampere.
- Now the interesting fact is:
- We can convert a Galvanometer into an ammeter by connecting a shunt parallel to it.
- A shunt is a small wire having very low resistance
- We can also convert a Galvanometer into a voltmeter by connecting a very high resistance in its series.
Last updated on Jun 11, 2025
-> The RRB NTPC Admit Card 2025 has been released on 1st June 2025 on the official website.
-> The UPSC Prelims Result 2025 and UPSC IFS Result 2025 has been released @upsc.gov.in
-> Railway Recruitment Board activated the RRB ALP application form 2025 correction link, candidates can make the correction in the application form till 31st May 2025.
-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.
-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.
-> The official RRB ALP Recruitment 2025 provides an overview of the vacancy, exam date, selection process, eligibility criteria and many more.
->The candidates must have passed 10th with ITI or Diploma to be eligible for this post.
->The RRB Assistant Loco Pilot selection process comprises CBT I, CBT II, Computer Based Aptitude Test (CBAT), Document Verification, and Medical Examination.
-> This year, lakhs of aspiring candidates will take part in the recruitment process for this opportunity in Indian Railways.
-> Serious aspirants should prepare for the exam with RRB ALP Previous Year Papers.
-> Attempt RRB ALP GK & Reasoning Free Mock Tests and RRB ALP Current Affairs Free Mock Tests here