Answer:
Explanation:
Given
Required
Determine the voltage dropped in each stage.
The relation between the load voltage and the voltage dropped in each stage is
Where
So, we have:
Solve for
<em>Hence;</em>
<em>The voltage dropped at each phase is approximately 277.13V</em>
Answer:d
Explanation:
Suppose V is the voltage of battery and R is the resistance of bulb
so Power drop for initial stage
When another identical bulb of same resistance is applied in parallel so voltage Drop across both the resistor will be same i.e. V
so Power consumed
so there is no change in power and hence no dip in brightness
Answer:
U
Explanation:
The first law of thermodynamics states that:
where
U is the internal energy of the gas, which represents the sum of the chemical and thermal energy stored in the atoms and molecules of the gas
represents the variation of internal energy
Q is the heat absorbed by the system
W is the work done by the system
So, the sum of the chemical and thermal energy stored in atoms and molecules is represented by U, the internal energy.