Physics, 25.02.2020 17:50 kiaramccurty

IP A spark plug in a car has electrodes separated by a gap of 6.5×10−2 in . To create a spark and ignite the air-fuel mixture in the engine, an electric field of 3.2×106 V/m is required in the gap.

a.) What potential difference must be applied to the spark plug to initiatea spark?b.) Would the necessary applied voltage be greater or less if theseparation were greater? Would that be a good idea for animprovement in design? Find the potential difference for a separationof 0.05 inches.

Answers: 2

Show answers

Answers

Answer from: dymari10p59xn8

a.) $V=5283.2 \ V$

b.) $V=4064\ V$

Explanation:

Electric Field and Potential Difference

There are several conditions that must be met for a spark to be created into an air gap. Once the physical conditions are fixed, a minimum electric field is necessary for the spark to be initiated. Let s be the separation between the electrodes and V their potential difference. The electric field is

a.)

$\displaystyle E=\frac{V}{s}$

Solving for V

V=E.s

The separation is

$s= 5.5\cdot 10^{-2}\ in=0.001651 \ m$

Thus the potential difference is

$V=3.2\cdot 10^{6}\ V/m\times 0.001651 \ m$

$V=5283.2 \ V$

b.) If the separation was greater, the applied voltage needs to be greater if the electric field has to be constant. One possible measure to keep electrodes as close as possible is to build them as sharp edges. It gives the spark an easier path to travel to.

If the separation is 0.05 inches =0.00127 m

$V=3.2\cdot 10^{6}\ V/m\times 0.00127 \ m$

$V=4064\ V$

Answer from: Quest

this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.

Answer from: Quest

nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation:

Another question on Physics

Physics, 22.06.2019 01:20

Abanked road comer of radius 146 m is to be constructed. if the comer is designed for vehicles moving with a speed of 20.0 m/s, what should the banking angle be, in units of degrees?

Answers: 3

Answer

Physics, 22.06.2019 17:40

Which component of the earth’s atmosphere is decreased due to photosynthesis?

Answers: 1

Answer

Physics, 22.06.2019 18:30

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material

Answers: 2

Answer

Physics, 22.06.2019 22:00

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.

Answers: 2

Answer

You know the right answer?

IP A spark plug in a car has electrodes separated by a gap of 6.5×10−2 in . To create a spark and ig...

Questions