A transformer is designed to change 109 VV into 13,500 VV, and there are 120 turns in the primary coil. Part A How many turns ar
1 answer:
A transformer is designed to change 109 VV into 13,500 VV, and there are 120 turns in the primary coil. The secondary coil will have 14862 turns
A step-up transformer is a transformer that increases the voltage from the primary coil to the secondary coil while managing the same power at the rated frequency in both coils. It converts low voltage & high current from the primary side to the high voltage & low current on the secondary side of the transformer.
Ns = number of turns on the secondary coil = ?
Np = number of turns on the primary coil = 120
Vs = voltage across the secondary coil = 13500
Vp = voltage across the primary coil = 109
=
109/13500 = 120 / Ns
Ns = 14862 turns
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<u>Answer: </u>
Maximum height reached by the ball thrown up at 30m/s is 3.06 seconds and the height reached is 45.9 meters
<u>Explanation</u>:
Given:
Initial velocity
To find :
maximum height =?
time taken=?
Solution:
<em>Step 1:Finding the time taken to reach the highest point</em>:
The velocity of the ball at its highest ,final velocity v=0
Using the formula,
Where a is acceleration due to gravity.Its value is
Substituting the values:
<em>Step 2: finding the highest point </em>
Using the formula
where
s is the maximum highest.
Substituting values
Result:
Thus the maximum height reached is 45.9 meters in 3.06 seconds