wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A circuit contains an ammeter, a battery of 30 V and a resistance of 40.8 ohm all connected in series. If the ammeter has a coil of resistance 480 ohm and a shunt of resistance 20 ohm, the reading in the ammeter will be

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

The correct option is B 0.5 A

Reff = 40.8 + 480×20480+20 =40.8+19.2 =60 ΩI=VeffReff=3060= 0.5 A

flag
Suggest Corrections
thumbs-up
172
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Series and Parallel Combination of Resistors
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon