N₂ / N₁ = 13.3
A transformer is a device that changes the voltage in the primary, causing a voltage to be induced in the secondary. The expression for this voltage ratio is
ΔV₂ = N₂ /N₁ ΔV₁
where N is the number of windings on each side and V2 and V1 are the voltages in the secondary and primary, respectively.
They state that the primary voltage in this instance is 9.0 V and the secondary voltage is 120 V.
ΔV₂ /ΔV₁ = N₂ / N₁
N₂ / N₁ = 120/9
N₂ / N₁ = 13.3
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A 9.0-V battery (with nonzero resistance) and switch are connected in series across the primary coil of a transformer. The secondary coil is connected to a light bulb that operates on 120 V. Determine the ratio of the secondary to primary turns needed for the bell's transformer. Determine the ratio of the secondary to primary turns needed for the bells transformer. Ns/Np=?
'Doing work' is a way of transferring energy from one object to another, energy is transferred when a force moves through a distance.
If i explain with formula
Work done (J) = Energy transferred (J)
So more energy, more work done bc u transferred more energy to move the object and doing the work. and if you only use a little of energy, the work done also only a little.
The Kyoto Protocol, which limits emissions of greenhouse gases for developed nations, is an example of international Law
Explanation:
The Kyoto Protocol is named after a Japanese city in which it was executed in the year 1997 on 1st December.
The basic aim of the Kyoto Protocol is to reduce/Limit the emission of greenhouse gases which contributed to global warming
The Protocol was linked to the United Nations Framework Convention on Climate Change (UNFCCC)
The important factor that led to the failure of Kyoto's Protocol are deficiencies in the structure of the agreement, such as the exemption of developing countries from reductions requirements, or the lack of an effective emissions trading scheme
Answer:
Explanation:
a ) At constant pressure , work done = P x Δ V
= 200 x 10³ x ( .1 - .04 )
= 12 x 10³ J .
b )
At constant temperature work done
= n RT ln v₂ / v₁
= PV ln v₂ / v₁
= 200 x 10³ x .04 ln .1 / .04
8 x 10³ x .916
= 7.33 x 10³ J .
The given question is incomplete. The complete question is as follows.
If gas in a cylinder is maintained at a constant temperature T, the pressure P is related to the volume V by a formula of the form
P = 
, in which a, b, n, and R are constants. Find 
.
Explanation:
We will use the quotient rule for each of the two terms on the right side as follows.
P = 
= 
= 
= 
Thus, we can conclude that the value of .
