2 years ago

What is the definition of major plates?

Physics

1 answer:

lutik1710 [3]2 years ago

7 0

Answer:

The outer shell of the earth, the lithosphere

Explanation:

The seven major plates are the African plate, Antarctic plate, Eurasian plate, Indo-Australian plate, North American plate, Pacific plate and South American plate.

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2 years ago

A material that has high resistance to the flow of electric current is called an electric ______

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A material that has high resistance to the flow of electric current is called an electric resistor

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With the switch open, roughly what must be the resistance of the resistor on the right for the current out of the battery to be

Delvig [45]

Answer:

The resistance must be 6.67 $\Omega$

Solution:

Resistance, $R_{1} = 20\Omega$

Resistance, $R_{2} = 10\Omega$

For the current to be the same when the switch is open or closed, the resistances must be connected in parallel as current is distributed in parallel with the same voltage across the circuit:

Thus in parallel:

$\frac{1}{R_{eq}} = \frac{1}{R_{1}} + \frac{1}{R_{2}}$