MCQOPTIONS
Bookmark
Saved Bookmarks
→
Physics
→
Conservation of energy and momentum in Physics
→
Current remains unchanged in a transformer...
1.
Current remains unchanged in a transformer.
A.
True
B.
False
Answer» C.
Show Answer
Discussion
No Comment Found
Post Comment
Related MCQs
In a step-down transformer, the number of turns in the secondary coil is 20 and the number of turns in the primary coil is 100. If the voltage applied to the primary coil is 120 V, then what is the voltage output from the secondary coil?
A transformer is used to light 100 W 25 volt lamp from 250 Volt ac mains. The current in the main cable is 0.5 A. Calculate the efficiency of the transformer.
Current remains unchanged in a transformer.
A transformer has an efficiency of 60% and works at 5kW. If the secondary voltage is 150 V, then what is the secondary current?
Which of the following is usually taken to make the core of a transformer?
Identify the correct combination for a step-down transformer.
The efficiency of a transformer is the ratio of output power to input power.
Pick out the correct combination for a step-up transformer.
Identify the expression for transformation ratio from the following.
Which among the following is true about transformers?
Reply to Comment
×
Name
*
Email
*
Comment
*
Submit Reply