lilybrok04
06.05.2021 •
Mathematics
The primary coil of a transformer has 250 turns and is connected to 220 V line. The secondary is to supply 10 A at 12 V.
(a) Identify whether the given transformer is a STEP-UP or STEP-DOWN transformer.
Calculate the following:
(b) The current in the primary coil
(c) The number of turns in the secondary coil
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Ответ:
C 10% Condition.
Step-by-step explanation:
Let's Look at them one by one.
A: Large Enough sample condition.
this is met because 600 students is a good number to carry out a surwey.
B: Randomization, 600 incoming freshman are definitely random.
C: we are left with C so the answer is C.