I am attaching the missing figure
If we assume 100% efficiency, this means that the input power of the transformer must be equal to the output power
We divide output/input
240,000/12,000 = 20
This means that the transformer has a turns ratio of 1:20
<span>
ns/np = 20/1 = 20
The voltage is amplified 20 times by the transformer, but this also means that the current decreases by a factor of 20, so the total power remains the same.</span>
Answer:
If the magnitude of the field is decreasing with time the direction of the induced magnetic field is CLOCKWISE
Explanation
This is because If the magnetic field decreases with time, the electric field will be produced in order to oppose the change in line with lenz law. Thus The right hand rule can be applied to find that the direction of electric field is in the clockwise direction.
Answer:
<em>a) Jack does more work uphill</em>
<em>b) Numerically, we can see that Jill applied the most power downhill</em>
<em></em>
Explanation:
Jack's mass = 75 kg
Jill's mass = 
Jill's mass = 
= 50 kg
distance up hill = 15 m
a) work done by Jack uphill = mgh
where g = acceleration due to gravity= 9.81 m/s^2
work = 75 x 9.81 x 15 = <em>11036.25 J</em>
similarly,
Jill's work uphill = 50 x 9.81 x 15 = <em>7357.5 J</em>
<em>this shows that Jack does more work climbing up the hill</em>
<em></em>
b) assuming Jack's time downhill to be t,
then Jill's time = 
we recall that power is the rate in which work id done, i.e
P = 
For Jack, power = 
For Jill, power = 
= 
<em>Numerically, we can see that Jill applied the most power downhill</em>
Answer:
Option "D" is the correct answer.
Explanation:
It is only optical illusion that best describes the formation of other multiple images which are not based on other scientific mechanism. Thank you.
The electric field across the plates is defined by
E = V / d .............. where V is the potential difference and d the distance that separates the plates.
E = 12 Volts/ 0.25 meters = 48 V/m
