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3 years ago

5

Students are given some resistors with various resistances a battery with internal resistance

2 answers:

Hunter-Best [27]3 years ago

5 0

One of the primary reasons why a battery should have an internal resistance is that because it is connected to an electromotive source. This electromotive force that is caused by a potential difference would be used for driving the current to power the electrical loads the battery sustains.

balu736 [363]3 years ago

5 0

Answer:

Explanation

Explanation:

V = emf − Ir ,

where r is the internal resistance and I is the current flowing at the time of the measurement.

I is positive if current flows away from the positive terminal. The larger the current, the smaller the terminal voltage.

Resistances is series add the total resistances

while in parallel reduces .

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Zarrin [17]

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3 years ago

On Mars, where air resistance is negligible, an astronaut drops a rock from a cliff and notes that the rock falls about d meters

dimulka [17.4K]

Answer:

$d_1 = 16 d$

Explanation:

As we know that initial speed of the fall of the stone is ZERO

$v_i = 0$

also the acceleration due to gravity on Mars is g

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now we have

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now if the same is dropped for 4t seconds of time

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7 0

3 years ago

Read 2 more answers

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Korolek [52]

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3 years ago

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tankabanditka [31]

Answer:

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konstantin123 [22]

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