Question
Download Solution PDFThe potential difference across a copper wire is 5.0 V when a current of 0.5 A flows through it. The resistance of the wire is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is 10.0 Ω.Key Points
- The formula for calculating resistance is R = V/I, where V is the potential difference and I is the current flowing through the wire.
- Plugging in the given values, R = 5.0 V / 0.5 A = 10.0 Ω.
- Therefore, the correct answer is 10.0 Ω.
- Copper wire is a good conductor of electricity due to its high electrical conductivity and low resistivity.
Additional Information
- The difference in charge carrier energy between two places in a circuit is known as the potential difference.
- The ease with which an electric current can pass through a material is measured by its electrical conductivity.
- The amount of obstruction to current passage in an electrical circuit is measured as resistance.
Last updated on Jun 2, 2025
-> The RRB NTPC Admit Card 2025 has been released on 1st June 2025 on the official website.
-> The RRB Group D Exam Date will be soon announce on the official website. Candidates can check it through here about the exam schedule, admit card, shift timings, exam patten and many more.
-> A total of 1,08,22,423 applications have been received for the RRB Group D Exam 2025.
-> The RRB Group D Recruitment 2025 Notification was released for 32438 vacancies of various level 1 posts like Assistant Pointsman, Track Maintainer (Grade-IV), Assistant, S&T, etc.
-> The minimum educational qualification for RRB Group D Recruitment (Level-1 posts) has been updated to have at least a 10th pass, ITI, or an equivalent qualification, or a National Apprenticeship Certificate (NAC) granted by the NCVT.
-> This is an excellent opportunity for 10th-pass candidates with ITI qualifications as they are eligible for these posts.
-> The selection of the candidates is based on the CBT, Physical Test, and Document Verification.
-> Prepare for the exam with RRB Group D Previous Year Papers.