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4 years ago

The potential difference across a variable resistor is 11V and the current flowing through it is 0.4A.

Physics

2 answers:

klemol [59]4 years ago

5 0

The resistance is 27.5 ohms

Paul [167]4 years ago

5 0

Resistance = (potential difference) / (current)

Resistance = (11 V) / (0.4 A)

<em>Resistance = 27.5 ohms</em>

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3 years ago

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frosja888 [35]

Answer:

$N_{electrons}=Q_{transfered}/q_{electron}=5.94*10^{18}electrons$

Explanation:

The total charge is distributed over the two objects:

$Q_{total}/2=(3.8*10^{-6}C+1.9C)/2=0.9500019C\\$

The plate and the rod must have $Q_{total}/2\\$ . So the charge transferred from the plate to the rod is:

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3 years ago

A force vector points due east and has a magnitude of 140 newtons. A second force is added to . The resultant of the two vectors

ale4655 [162]

Answer:

(a) When the resultant force is pointing along east line, the magnitude and direction of the second force is 280 N East

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Explanation:

Given;

a force vector points due east, $F_1$ = 140 N

let the second force = $F_2$

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(b) When the resultant force is pointing along west line

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$F_2 = 560 \ West$

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3 years ago

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Explanation:

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