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Margarita [4]
3 years ago
10

The Solar System formed...

Physics
1 answer:
maxonik [38]3 years ago
4 0

Answer:The answer is because of the gravity and the mass formed in the sun, the magnetic field reacts to it and leaves a fault on earth. wind goes by the earth and procides to be ok

Explanation:that is it

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When a bimetallic bar made of copper and iron strips is heated, it
Sidana [21]

Answer:

The bimetallic strip will bend to the iron's way since

When heated copper expands more than iron

Explanation:

bimetallic strips are temperature regulatory devices used to convert a temperature change into mechanical displacement.

It consists of two layers, usually iron and copper which layers are joined together to form the strip owing to the difference in the constants of expansion of the two materials, a flat strip will bend one way (toward the iron part) if heated. The linear thermal expansion coefficient relates the change in temperature to the change in a material's linear dimensions.

5 0
4 years ago
A 290-turn solenoid having a length of 32 cm and a diameter of 11 cm carries a current of 0.30 A. Calculate the magnitude of the
iris [78.8K]

The magnitude of the magnetic field inside the solenoid is 3.4×10^(-4) T.

To find the answer, we need to know about the magnetic field inside the solenoid.

<h3>What's the expression of magnetic field inside a solenoid?</h3>
  • Mathematically, the expression of magnetic field inside the solenoid= μ₀×n×I
  • n = no. of turns per unit length and I = current through the solenoid
<h3>What's is the magnetic field inside the solenoid here?</h3>
  • Here, n = 290/32cm or 290/0.32 = 906

I= 0.3 A

  • So, Magnetic field= 4π×10^(-7)×906×0.3 = 3.4×10^(-4) T.

Thus, we can conclude that the magnitude of the magnetic field inside the solenoid is 3.4×10^(-4) T.

Learn more about the magnetic field inside the solenoid here:

brainly.com/question/22814970

#SPJ4

6 0
2 years ago
Check all that apply. An ammeter is used to measure current. An ammeter must be placed in parallel with a resistor to measure th
Juliette [100K]

<u>Out of all given choices, the following statements are true:</u>

  • An ammeter is used to measure current.
  • A voltmeter is used to measure voltage.
  • A voltmeter must be placed in parallel with a resistor to measure the voltage across the resistor.

Options A, E, and F

<u>Explanation:</u>

An instrument by which the current in a circuit is measured is  called ammeter whereas an instrument in which voltage is measured in a circuit is called a voltmeter . The ammeter is placed in series with the resistor while the voltmeter is placed in parallel with the resistor.

For the option B, since the ammeter must be placed in series with the resistor to measure current, it is false. Option C is false because an ammeter has zero internal resistance. Option D is also false because a voltmeter has a high internal resistance and is actually infinite.

6 0
3 years ago
A wave has a frequency of 12 Hz and a wavelength of 5 m. What is the wave speed?
Feliz [49]

Answer:

The speed of the wave is 15ms .

Explanation:

7 0
2 years ago
a train covers half of its journey with a speed of 20 metre per second and the other of with the speed of 30 metre per second th
Andrews [41]

Answer:

25 meters per second

Explanation:

2 halves so you find the average of the two by adding 20+30=50 then dividing it by number of halves, this is 2.

50/2=25

8 0
3 years ago
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