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FinnZ [79.3K]
3 years ago
8

When using the right-hand rule to determine the direction of the magnetic field around a current-carrying wire, which part of th

e right hand points in the direction of the magnetic field?
palm

fingers

back

thumb
Physics
2 answers:
kirza4 [7]3 years ago
8 0

Answer:

Curled fingers will give the direction of magnetic field.

Explanation:

The right hand thumb rule states that hold any current carrying conductor in your right hand such that the thumb is pointing in the direction of electric current. Then the curled finger will give the direction of magnetic field.

For example : when the current in the wire is flowing towards right, then the curled finger will give the direction of magnetic field i.e. the field is towards bottom.

Hence, the correct option is (c) fingers.

Margarita [4]3 years ago
5 0
Your answer will be fingers

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UkoKoshka [18]

Answer:

If I remembered correctly the answer would be Ne and Ar(Neon and Argon

7 0
3 years ago
Find the velociity of a car which travels 35 m to the right over a period of 40 seconds
GalinKa [24]

Answer:

the velocity of the car is 0.875 m/s

Explanation:

v = d \div t \\ v = 35m \div 40sec = 0.875 \: m \: per \: sec

therefore the V of car is 0.875 m

8 0
3 years ago
Say that you are in a large room at temperature TC = 300 K. Someone gives you a pot of hot soup at a temperature of TH = 340 K.
DiKsa [7]

Answer:0.061

Explanation:

Given

T_C=300 k

Temperature of soup T_H=340 K

heat capacity of soup c_v=33 J/K

Here Temperature of soup is constantly decreasing

suppose T is the temperature of soup at any  instant

efficiency is given by

\eta =\frac{dW}{Q}=1-\frac{T_C}{T}

dW=Q(1-\frac{T_C}{T})

dW=c_v(1-\frac{T_C}{T})dT

integrating From T_H to T_C

\int dW=\int_{T_C}^{T_H}c_v(1-\frac{T_C}{T})dT

W=\int_{T_C}^{T_H}33\cdot (1-\frac{300}{T})dT

W=c_v\left [ T-T_C\ln T\right ]_{T_H}^{T_C}

W=c_v\left [ \left ( T_C-T_H\right )-T_C\left ( \ln \frac{T_C}{T_H}\right )\right ]

Now heat lost by soup is given by

Q=c_v(T_C-T_H)

Fraction of the total heat that is lost by the soup can be turned is given by

=\frac{W}{Q}

=\frac{c_v\left [ \left ( T_C-T_H\right )-T_C\left ( \ln \frac{T_C}{T_H}\right )\right ]}{c_v(T_C-T_H)}

=\frac{T_C-T_H-T_C\ln (\frac{T_C}{T_H})}{T_C-T_H}

=\frac{300-340-300\ln (\frac{300}{340})}{300-340}

=\frac{-40+37.548}{-40}

=0.061

4 0
3 years ago
Energy is inversely proportional to the wavelength of a wave. Which would have the GREATEST energy? A wave with a
Ivan

Answer:

A 5

Explanation:

The wave with the least amount of wavelength will have the greatest amount of energy.

Wavelength and energy shares an inverse relationship;

       E  = h f  = \frac{hc}{wavelength}

From this equation, we see that the higher the energy of a wave, the lesser its wavelength.

  • Choice A from the options has the least wavelength.
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This is why we see that in the electromagnetic spectrum, radio waves have the least energy because they have the longest wavelength.

3 0
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How many structures do prokaryotic cells have in common with the eukaryotic cells?
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Two. The both have a plasma membrane and cytoplasm. 
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