| ⇦ | 
| ⇨ |
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: - If a given volume of water in a 220V heater is boiled in 5 min, then same volume
- The photoelectric threshold frequency of a metal is ν. When light of frequency 4ν
- A neutron moving with velocity v collides with a stationary particle
- The drive shaft of an automobile rotates at 3600 rpm and transmits 80 HP
- Before using the tangent galvanometer, its coil is set in
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If a given volume of water in a 220V heater is boiled in 5 min, then same volume
- The photoelectric threshold frequency of a metal is ν. When light of frequency 4ν
- A neutron moving with velocity v collides with a stationary particle
- The drive shaft of an automobile rotates at 3600 rpm and transmits 80 HP
- Before using the tangent galvanometer, its coil is set in
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.