CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A 2V battery, a 990Ω resistor and a potentiometer of 2m length, all are connected in series, the resistance of potentiometer wire is 10Ω, then the potential gradient of potentiometer wire is:

A
0.05 Vm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
0.5 V/m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
0.01 V/m
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
0.1 V/m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 0.01 V/m
Reff=Rwire+Rresistor
=10Ω+990Ω=1000Ω
'V' drop across wire
Vw=I×Rwire
Vw=VbatteryReff×10Ω
Vw=21000×10=2×102 volt
Potential gradient =Vwl=2×1022
Vl=0.01 volt/metre

flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Alternating Current Applied to a Capacitor
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon