# Transformers can be used to allow the 120 V current from your wall and can be used to power a 10 V blowdryer, but not a 150 V refrigerator. Group of answer choices True False Flag question: Question 2 Question 24 pts If the secondary coil in a transformer has 40 turns, and the primary coil with 20 turns is charged with a p.d. 50 V, then the p.d. in the secondary coil would be _(blank)_. Group of answer choices 60 V 25 V 50 V 100 V Flag question: Question 3 Question 34 pts In a transformer, p.d.

###### Question:

Transformers can be used to allow the 120 V current from your wall and can be used to power a 10 V blowdryer, but not a 150 V refrigerator.
Group of answer choices
True
False
Flag question: Question 2
Question 24 pts
If the secondary coil in a transformer has 40 turns, and the primary coil with 20 turns is charged with a p.d. 50 V, then the p.d. in the secondary coil would be _(blank)_.
Group of answer choices
60 V
25 V
50 V
100 V
Flag question: Question 3
Question 34 pts
In a transformer, p.d. is induced in the _(blank)_.
Group of answer choices
secondary coil
core
variable resistor
primary coil
Flag question: Question 4
Question 44 pts
If you want your 12.6 V car battery to power your new 200 V aftermarket sound system, what is the required ratio of loops on the primary coil to loops on the secondary coil?
Group of answer choices
1:16
1:8
16:1
8:1
Flag question: Question 5
Question 54 pts
If you plug a 9.0 V battery into a transformer with a primary coil of 54 loops and a secondary coil of 45 loops, what will be the resulting p.d. in the secondary coil?
Group of answer choices
12 V
11 V
7.5 V
4.5 V

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