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.
1 answer
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
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
Answers
Answer:Explanation:What the heck is a p.d.? I'm going to assume it is voltage potential as measured on opposite ends of each transformer winding with infinite load resistance.1) False A step up transformer could convert 120 vac to 150 vac2) 100 VChange in voltage is proportional to change in winding counts.3) The induced voltage occurs in the secondary coil4) Kind of a trick question because a car battery is a direct current source and cannot be used in a transformer to change voltage to drive a power device. If one were to use an inverter to create an alternating current with the same peak voltage and run that through a transformer with turns ratio 12.6 primary : 200 secondary or roughly 1:16, then the possibility exists. 5)Again, a trick question as a battery is a direct current source. If one did connect a battery to a transformer, then during the inrush phase after initial connection, the secondary side of the transformer would see a voltage of 9.0(45/54) = 7.5 V After a few milliseconds the secondary side would show 0V
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