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3 years ago

If you place a 50 Volt power source across a 10 Ohm resistor, what will the current be?

Physics

1 answer:

lorasvet [3.4K]3 years ago

4 0

Answer:

use voltage=current*resistance

v=i*r

50=i*10

50/10=i

i=5

hope it's clear

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3 years ago

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kupik [55]

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2 years ago

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3 years ago

Assume that a lightning bolt can be modeled as a long, straight line of current. If 16 C of charge passes by a point in 1.50 x 1

Reptile [31]

Answer:

$B = 7.9012*10^{-5}T$

Explanation:

To solve the problem, the concepts related to the magnetic field and the current produced in a lightning bolt are necessary.

The current is defined by the load due to time, that is to say

$I= \frac{q}{t}$

Where,

$q= Charge$

$t = time$

So the current can be expressed as:

$I = \frac{16}{1.5*10^{-3}}$

$I = 10666.67A$

Once the current is found it is now possible to find the magnetic field, as this is given by the equation,

$B =\frac{\mu_0}{2\pi}\frac{I}{r}$

Where,

$\mu_0 =$ Permeability Constant

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r= radius

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$B=\frac{4\pi*10^{-7}}{2\pi}(\frac{10666.67}{27})$

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3 years ago