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

A current of 5A is flowing at 220V in the primary coil of a transformer. If the voltage produced in the secondary coil is 2200V and 50% of power is lost, then the current in the secondary will be


A

2.5A

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

5A

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

0.25A

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D

0.5A

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C

0.25A


Step 1: Given Data and Assumptions:

Current in the primary coil Ip=5A

Voltage in the primary coil Vp=220V

Voltage produced in the secondary coil Vs=2200V

Power in the primary coil =Pp

Power in the secondary coil =Ps

Step 2: Formula Used:

P=VI

Where, P is power

I is Current

V is Voltage

Step 3: Calculating the current in the secondary coil:

As 50% of power is lost in the secondary coil,

Ps=50%Pp

Ps=50100×Pp

Ps=0.5Pp

VsIs=0.5×VpIp

Is=0.5×VpIpVs

=0.5×220×52200

=0.25A

Hence, option C is the correct answer.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon