Concept explainers
(a)
The type of transformer
Answer to Problem 27P
Solution:
It is a step-down transformer
Explanation of Solution
Given info:
No. of turns in primary coil
No. of turns in secondary coil
A transformer designed to reduced voltage from primary coil to secondary coil is called a step-down transformer. This is step down transformer because Ns<Np (or)Np>Ns.
(b)
The change in voltage
Answer to Problem 27P
Solution:
Voltage changes by ratio.
Explanation of Solution
Given info:
No. of turns in primary coil
No. of turns in secondary coil
Formula used:
According to voltage ratio formula
Calculation:
(c)
Change in current
Answer to Problem 27P
Solution:
Change in current by ratio.
Explanation of Solution
Given info:
No. of turns in primary coil
No. of turns in secondary coil
Formula used:
According to current ratio formula
Calculation:
Chapter 21 Solutions
Physics: Principles with Applications
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