All categories

2 years ago

Impact of electricity in the society

Physics

1 answer:

Travka [436]2 years ago

5 0

Answer:

<h2>Electricity has many uses in our day to day life. It is used for lighting rooms, working fans and domestic appliances like using electric stoves, A/C and more. All these provide comfort to people. In factories, large machines are worked with the help of electricity.</h2>

You might be interested in

The amount of light a star gives off is called . . -apparent magnitude . . -visibility . . -absolute magnitude . . -light sensit

Gemiola [76]

The amount of light that a star gives off is actually brightness. But given the choices, I think it is the measure of the light that is asked. The answer is Absolute magnitude. This is the measure of the magnitude of brightness. This is usually used in celestial objects.

3 0

3 years ago

Read 2 more answers

Choose True or False. If False, choose the statement that makes it True.

OLga [1]

James Clerk Maxwell laid the foundation for the discovery of electromagnetism. True

8 0

3 years ago

When a basketball player jumps to make a shot, once the feet are off

In-s [12.5K]

There's no question.I think these are just the answer choices

3 0

3 years ago

A test charge of +2μC is placed halfway between a charge of +6μC and another of +4μC separated by 10 cm. (a) What is the magnitu

Nady [450]

Answer:

Part a)

F = 14.4 N

Part b)

away from +6μC charge

Explanation:

Force on the charge placed midway between two charges is given by

$F = \frac{kq_1q}{r^2} - \frac{kq_2q}{r^2}$

here we know that

$q = 2\mu C$

$q_1 = 6 \mu C$

$q_2 = 4\mu C$

here the charge is placed at mid point so we have

$r = 5 cm$

now we have

$F = \frac{(9\times 10^9)(6\mu C)(2\mu C)}{0.05^2} - \frac{(9\times 10^9)(2\mu C)(4\mu C)}{0.05^2}$

$F = 43.2 - 28.8 = 14.4 N$

Part b)

since +6μC charge is more in magnitude so the force due to this charge will be more so the net force on it is away from +6μC charge

8 0

4 years ago

Explain Resistor in parallel and series.

patriot [66]

$\sf\huge\underline\blue{Resistor:-}$

$\rightarrow$ A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element.

$\rightarrow$ Resistors reduce the current flow and lower voltage levels within circuits.

$\sf\large\underline\purple{Resistors \:in\: Series:-}$

$\rightarrow$ A circuit is said to be connected in series when the same amount of current flows through the resistors. In such circuits, the voltage across each resistor is different.

$\rightarrow$ In a series connection, if any resistor is broken or a fault occurs, then the entire circuit is turned off. The construction of a series circuit is simpler compared to a parallel circuit.

$\rightarrow$ For the above circuit(attached image-1), the total resistance is given as:

$\sf{R_{total}\: = \:R1 + R2 + ….. + Rn}$

The total resistance of the system is just the total of individual resistances.

$\sf\large\underline\purple{Resistors \:in\: Parallel:-}$

$\rightarrow$ A circuit is said to be connected in parallel when the voltage is the same across the resistors. In such circuits, the current is branched out and recombines when branches meet at a common point.

$\rightarrow$ A resistor or any other component can be connected or disconnected easily without affecting other elements in a parallel circuit.

$\rightarrow$ The figure(attached image -2) above shows ‘n’ number of resistors connected in parallel. The following relation gives the total resistance here

$\sf{\frac{1}{R_{total}}\: = \:\frac{1}{R1} + \frac{1}{R2} + ….. + \frac{1}{Rn}}$

$\rightarrow$ The sum of reciprocals of resistance of an individual resistor is the total reciprocal resistance of the system.

_______________________________

Hope it helps you:)

6 0

2 years ago

Read 2 more answers