PHYSICS HIGH SCHOOL

What is ohms law solved for current

Answers

Answer 1
Answer:

The resistor's current I in amps  is equal to the resistor's voltage V in volts (V) divided by the resistance R in ohms (Ω) I hope this helped

Answer 2
Answer:

Hello!

Explanation:

↓↓↓↓↓↓↓↓↓

The relationships between current, voltage, and resistance is expressed mathematically in Ohm's law. R is the resistance, measured in ohms. V is the voltage, measured in volts. I is the current, measured in amperes. You can use Ohm's law to see how changes in current, resistance, and voltage are related. Voltage and current are directly proportional. Resistance and current are inversely proportional.

Ohm's law formula:

↓↓↓↓↓↓↓↓↓↓↓↓

Hope this helps!

Thank you for posting your question at here on brainly.

-Charlie


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HIGH SCHOOL

Jake calculates that the frequency of a wave is 230 hertz, and its wave is moving at 460 m/s. What is the wavelength of the wave?

Answers

Explanation:

The relation between frequency, wavelength, and velocity is as follows.

                   

where,     f = frequency

                v = velocity

          = wavelength

It is given that frequency of the wave is 230 hertz (or 230 per second) and velocity of wave is 460 m/s. Therefore, calculate the wavelength as follows.

               

or,            

                                    =

                                    = 2 m

Therefore, we can conclude that the wavelength of the wave is 2 m.

To find the wavelength of a wave you have to divide the speed by the frequency..it will equal 2 m...460/230=2
V=F Ω
wave speed=frequency*wavelength
COLLEGE

Consider a beam of electrons in a vacuum, passing through a very narrow slit of width 2.00μm. The electrons then head toward an array of detectors a distance 1.068 m away. These detectors indicate a diffraction pattern, with a broad maximum of electron intensity (i.e., the number of electrons received in a certain area over a certain period of time) with minima of electron intensity on either side, spaced 0.527 cm from the center of the pattern. What is the wavelength λ of one of the electrons in this beam? Recall that the location of the first intensity minima in a single slit diffraction pattern for light is y=Lλ/a, where L is the distance to the screen (detector) and a is the width of the slit. The derivation of this formula was based entirely upon the wave nature of light, so by de Broglie's hypothesis it will also apply to the case of electron waves.

Answers

Answer:

Explanation:

In a single-slit diffraction pattern, the location of the first minimum is given by

where

L is the distance between the slit and the screen

is the wavelength

a is the width of the slit

In this problem, we have

(location of first minimum)

L = 1.068 m (distance of the screen)

(width of the slit)

Solving the equation for , we find the De Broglie wavelength of the electron:

MIDDLE SCHOOL

List the kinds of evidence that indicate that a chemical reaction has occurred.

Answers

1) Temperature change

2 ) exothermic release of energy

3) Endothermic absorption of energy


I hope that's help !

MIDDLE SCHOOL

A pendulum 2m long is released from rest when string makes 30 degree with the vertical.find speed of 70g bob and the tension

Answers

Answer:

Speed of 70g bob =  2.291m/s

The tension = 0.864 N

Explanation:

The height of rise of the pendulum is

X = L ( 1- cos θ)

X= (2)( 1 - cos30)

X  = (2)(1- 8660)

X=(2)(0.134)

X=0.268

According to conservation of energy

Substituting the values,

V  =

V =

V =2.291m/s

Now Tension  can be calculated as

T = ma

where

m is the mass

a is the centripetal acceleration

So now ,

substituting in Tension formula,

T= (0.07)(9.8 +2.62 )               ( 70 g is 0.07 kg)

T= (0.07)(12.42)

T=0.864 N

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