| ⇦ | 
| ⇨ |
An electron in potentiometer experiences a force 2.4×10⁻¹⁹N. The length of potentiometer wire is 6m. The emf of the battery connected across the wire is (electronic charge=1.6×10⁻¹⁹C)
Options
(a) 6V
(b) 9V
(c) 12V
(d) 15V
Correct Answer:
9V
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - In one dimensionsal motion,instantaneous speed v statisfies 0⦤v⦤vₒ
- In a common emitter (CE) amplifier having a voltage gain G, the transistor
- The moment of inertia of a semicircular ring about the centre is
- The refracting angle of a prism is A and refractive index of the material of the prism
- Three solids of masses m₁,m₂ and m₃ are connected with weightless string
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In one dimensionsal motion,instantaneous speed v statisfies 0⦤v⦤vₒ
- In a common emitter (CE) amplifier having a voltage gain G, the transistor
- The moment of inertia of a semicircular ring about the centre is
- The refracting angle of a prism is A and refractive index of the material of the prism
- Three solids of masses m₁,m₂ and m₃ are connected with weightless string
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Formula Used: EMF = Force*distance/charge , given in HC Verma (Electric Current in conductors)
Plugging all the values give the value of EMF to be 9V.