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3 years ago

Which best describes a difference between electric current and static electricity

2 answers:

8 0

Static electricity is caused by the build up of charges on surfaces of objects while electric current is the constant flow of electrons along a conductor (the rate of flow of charge).

melomori [17]3 years ago

3 0

The question is missing its alternative. Here is the complete question.

Which best describes a difference between electric current and static electricity?

a. Electric current is continuous and static electricity is not continuous.

b. Static electricity is continuous and electric current is not continuous.

c. Electric current involves the movement of electrons, and stattic electricity involves the moment of protons.

d. Static electricity involves the movement of electrons and electric current involves the movement of protons.

Answer: a. Electric current is continuous and static electricity is not continuous.

Explanation: Electric current occurs when there is a flow of electrons (negative charges) in a circuit or conductor. The flow happens when there is a difference of potential between the ends of a circuit. The flow of electrons is non-stop so, electric current is continuous.

Static electricity is due to an imbalance of electric negative charges within or on an object's surface. This imbalance most likely happens by friction and consists of motionless isolated charges. For that reason, static electricity is not continuous.

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When Jennifer is out for a

Nady [450]

The acceleration is the principal subordinate of the speed if the speed is steady the subsidiary is invalid if the speed is diminishing the subsidiary is negative. When discussing so much stuff we consider the momentary esteem.

Note that when you back off, you back off by and large yet can locally in time quicken a tiny bit, suppose amid 1/tenth of a sec since you achieved a segment of the street which was slanting. In any case, this does not change the way that when the speed diminishes, the quickening is negative.

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3 years ago

Three joules of work is needed to shift 10 C of charge from one place to another. The potential difference between the places is

dimaraw [331]

Answer:

The potential difference between the places is 0.3 V.

∴ 1st option i.e. 0.3V is the correct option.

Explanation:

Given

Work done W = 3J

Amount of Charge q = 10C

To determine

We need to determine the potential difference V between the places.

The potential difference between the two points can be determined using the formula

Potential Difference (V) = Work Done (W) / Amount of Charge (q)

$\:V\:=\:\frac{W}{q}$

substituting W = 3 and q = 10 in the formula

$V=\frac{3}{10}$

$V=0.3$ V

Therefore, the potential difference between the places is 0.3 V.

∴ 1st option i.e. 0.3V is the correct option.

4 0

3 years ago

An infinitely long straight wire has a uniform linear charge density of Derive the 4. equation for the electric field a distance

marshall27 [118]

Answer:

$E = \frac{\lambda}{2\pi \epsilon_0 r}$

Explanation:

Let the linear charge density of the charged wire is given as

$\frac{q}{L} = \lambda$

here we can use Gauss law to find the electric field at a distance r from wire

so here we will assume a Gaussian surface of cylinder shape around the wire

so we have

$\int E. dA = \frac{q}{\epsilon_0}$

here we have

$E \int dA = \frac{\lambda L}{\epsilon_0}$

$E. 2\pi r L = \frac{\lambda L}{\epsilon_0}$

so we have

$E = \frac{\lambda}{2\pi \epsilon_0 r}$

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3 years ago

2. Turn off the Parallel line and turn on the Line through focal point. Move the light bulb around. What do you notice about the

MArishka [77]

Answer:

The group of light rays is reflected back towards the focal point thereby producing a magnifying effect.

Explanation:

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4 years ago

Name two objects that both use electric motors and are commonly found in houses

Natali [406]

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Hope this helps!

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3 years ago

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