In a series circuit, the same amount of current flows through all the components placed in it. On the other hand, in parallel circuits, the components are placed in parallel with each other due to which the circuit splits the current flow.

5 0

2 years ago

The source of a sound moves away from the listener. The listener has the impression that the source is __________.

prohojiy [21]

Explanation:

As the source of sound waves approaches you the sound waves get closer together, increasing their frequency and the pitch of the sound. The opposite happens when the source of sound waves moves away from you

6 0

2 years ago

Question:

ANEK [815]

Answer:

It states a fact about how nature works.

It often changes over time with new experiments and technology.

5 0

3 years ago

What is the formula for calculating the efficiency of a heat engine? Efficiency = StartFraction T Subscript h Baseline minus T S

Anna007 [38]

Efficiency of heat engine is determined by the ratio of difference in temperature of cold from hot reservoir to the temperature of hot reservoir over temperature of hot reservoir.

Answer: Option A

<u>Explanation:</u>

Efficiency is defined as the output from the input. So it is the ratio of energy output to the energy input. In case of temperature, it is the change in temperature from hot reservoir to cold reservoir with the overall hot reservoir temperature.

$Efficiency =\frac{T_{h} -T_{c} }{T_{h} }$

Thus, option A is the most suitable as the heat will be transferred from high temperature to low temperature. So the hot reservoir will be releasing the energy. So the conversion of hot reservoir temperature to cool reservoir temperature is defined as the efficiency. Thus, option A is the most suitable.

9 0

3 years ago