Home›MPPSC Forest›State Forest Service Mains Exam›Section 'B': Forestry and General Science›UNIT-07: Physics›Electricity and its effects: Electric intensity, potential, potential difference, electric current, Ohm's law, resistance, specific resistance, factors influencing resistance, combination of resistance (numerical examples), thermal effect of current and its use, calculation of power and electrical energy spent (numerical), precautions in electric experiments›Five equal resistances each of resistance 3Ω are connected as shown

Five equal resistances each of resistance 3Ω are connected as shown in the fallowing figure .The equivalent resistance between the points A and E :

20183M#mppsc-forest#pyq#mcq#2018
A.5ΩCorrect
B.8Ω
C.10Ω
D.15Ω
Explanation & Solution

Correct Answer: (A) 5Ω

Analyzing the symmetrical bridge network of five equal 3-ohm resistors connected between points A and E, the bridge balances out such that the equivalent resistance across terminals A and E simplifies to exactly 5 ohms.

हिंदी में प्रश्न एवं आदर्श उत्तर

पाँच बराबर प्रतिरोध प्रत्येक का प्रतिरोध 3Ω निम्न चित्र में दिखाए गए अनुसार जुड़े है। बिन्दु A तथा E के बीच समतुल्य प्रतिरोध है:

A.5Ωसही
B.8Ω
C.10Ω
D.15Ω

सही उत्तर: (A) 5Ω

बिंदुओं A और E के बीच जुड़े पाँच समान 3Ω के प्रतिरोधों वाले सममित सेतु परिपथ का विश्लेषण करने पर, इसका तुल्य प्रतिरोध गणना के पश्चात 5Ω प्राप्त होता है।

See this question in context →
Free Android App

Practice Better on the StatePYQ Mobile App

⚡ Error Diary · ⏱ Timed Mains Answer Pacer · 📴 Offline Revision Vault

Get it onGoogle Play