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3 years ago

Identify the areas on the image where the force of repulsion is the least.

Physics

2 answers:

astra-53 [7]3 years ago

6 0

Answer:

lower two magnets is the correct answer I believe

aalyn [17]3 years ago

4 0

Answer:

The central blue square in between the lower pair of magnet has the least force of repulsion.

Explanation:

We can explain this using the dual nature of magnets.

Each magnet must have two poles namely:

-North pole

-South pole

We assume that the magnetic lines of forces enters from south pole and leaves from the north pole.

When brought together, like poles repel each other while opposite poles attract each other.

In the picture, the lower two magnets have opposite poles facing each other, hence the force of repulsion is minimum there and the force of attraction is maximum.

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Explanation:

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Wavelength, $\lambda_p=4.23\times 10^{-12}\ m$

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Wavelength, $\lambda_p=4.23\times 10^{-12}\ m$

We need to find the potential difference. The relationship between potential difference and wavelength is given by :

$\lambda=\dfrac{h}{\sqrt{2m_eq_eV}}$

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$V=\dfrac{(6.62\times 10^{-34})^2}{2\times 1.6\times 10^{-19}\times 9.1\times 10^{-31}\times (4.23\times 10^{-12})^2}$

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3 years ago

An electric furnace runs 13 hours a day to heat a house during January (31 days). The heating element has a resistance of 7.2 an

liq [111]

Answer:

cost of running the furnace during January is $5619.62

Explanation:

given data

runs a day = 13 hours

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current = 16.7 A

cost of electricity = $0.10/kWh

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cost of running the furnace during January

solution

first we get her power consumed by furnace that is

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cost of running the furnace during January is $5619.62

4 0

3 years ago

Read 2 more answers

Identify the areas on the image where the force of repulsion is the least.​

Identify the areas on the image where the force of repulsion is the least.