In a given circuit, the supplied voltage is 1.5 volts. One resistor is 3 ohms and the other is 2 ohms. Use Ohm's law to determine the current in the circuit. 0.3 amps 1.5 amps 7.5 amps 3.3 amps The purpose of a fuse or circuit breaker is _____. to speed up the current to slow down the current to stop current that is flowing too fast to stop current that is flowing too slow
Answers
Part #1:
You haven't mentioned whether the resistors are in series
or in parallel. It's going to make a difference.
-- If the resistors are in series, then their net effective resistance
is their sum.
(3 ohms) + (2 ohms) = 5 ohms.
Current in the circuit is
(supply voltage) / (total resistance)
= (1.5 volts) / (5 ohms) = 0.3 ampere .
-- If the resistors are in parallel, then their net effective resistance
is
(their product) / (their sum)
= (1 ohms x 2 ohms) / (1 ohm + 2 ohms)
= (2 ohms²) / (3 ohms) = 2/3 ohm .
Current in the circuit is
(supply voltage) / (total resistance)
= (1.5 volts) / (2/3 ohm) = 1.0 ampere .
I guess your resistors are in series, because 0.3 amp
is one of the choices but 1.0 amp isn't.
______________________________________
Part #2.
When it comes to talking about electric current, the terms
"speed up", "slow down", "fast", and "slow" are somewhere
between meaningless and absurd.
The purpose of a fuse or circuit breaker is to shut down a current
that is too great ... too great a magnitude, too many electrons all
trying to crowd their way through the wire at the same time, like
100 lines of ants all carrying bread crumbs through a straw and
back to their hole, when there was only supposed to be one or
two lines.
Speed has nothing to do with it. All electric currents flow through
wires at the same speed, at least in high school. It's a matter of
Amperes, which has nothing to do with speed.
Related Questions
Erica needed to practice dribbling the ball up and down the length of the court. She divided to do it 10 times. How far did she dribble?
an object is attached to a vertical ideal massless spring and bobs up and down between the two extreme points a and b. when the kinetic energy of the object is a minimum, the object is located
Which of the following are capital cities in the Caribbean? Lima La Habana San Juan San Jos Guinea Ecuatorial
For long-distance transmission of power, in order to reduce losses in the wires by driving a low current at high voltage, we shoulda) use a step-up transformerb) change the length of the wires between transmission towersc) not use a transformer at alld) change the type of conducting materiale) use a step down transformer
b.) hydrogen
c.) gold
d.) table salt
Answers
Answers
Then the maximum height decreases to 16 x 0.81
And the distance traveled is twice the distance traveled.
If we make a pattern, this forms a geometric progression in which the common ratio is 0.81 and the first term is 16.
The sum of this series: a / (1 - r)
= 16 ( 1 - 0.81)
= 84 feet
This is the upward height, and the ball returns every time so:
Total distance = 84 x 2
= 168 feet
Answers
Well, the work is 500*15=7500J, that is 7.5 kJ or about 18 calories (1 cal is 418J?) The power is that 7.5 kJ divided by 20 seconds: 375W. That's... OK, I suppose...
Answer:
Work = (500N)(15m)=7500J Power= (7500J)/(20s) =375 W
Hopefully this helps
Explanation:
b. lamp
c. resistor
d. ammeter
Answers
In a battery we can able to find the voltage gain.
The following information should be considered;
- Since the battery is treated as the active device.
- But the lamp, resistor, ammeter are considered to be the passive devices that result to the potential drops instead of the voltage gain.
Learn more: brainly.com/question/1691136?referrer=searchResults
Answer:
A
Explanation:
Answers
Answer:
Explanation:
Pressure
Is a measure of how much force is applied perpendicular over a given area.
It is calculated by dividing the amount of force being applied F by the area over which it is being applied A:
The SI unit for pressure is the Pascal (Pa), equivalent to
A pressure of 300 Pa is being exerted over an area that experiences a force of 6000 N. We are required to calculate the value of the area.
If we know the pressure and the force, we solve the above equation for A;
Substituting the given values:
Answers
The answer is:
The track of the storm determines how much rain will fall.
The explanation:
-Storm tracks are the relatively narrow zones in seas and oceans where storms travel driven by the prevailing winds.
-hurricane is a tropical cyclone with winds of 74 miles (119 kilometers) per hour or greater that occurs especially in the western Atlantic, that is usually accompanied by rain, thunder, and lightning, and that sometimes moves into temperate latitudes. and it has aspects that can cause damage, these are flood, wind, surge, heavy rains and tornadoes.
Hurricane refers to a storm with violent wind, it usually occurs in tropical Caribbean areas. Each hurricane has five essential aspects that can cause damage, these are: flood, wind, surge, heavy rains and tornadoes.