1. 3 V is applied across a 6Ω resistor. What is the current?

Physics

1 answer:

pav-90 [236]4 years ago

4 0

The current is 0.5A

<u>Explanation:</u>

Given:

Voltage, V = 3 V

Resistance, R = 6Ω

Current, I = ?

We know:

Voltage = current X resistance

Substituting the value we get:

3V = I X 6

I = $\frac{3}{6} A$

I = 0.5A

Therefore, the current is 0.5A

You might be interested in

What form of energy is most abundant on earth

Kipish [7]

Solar energy is the most abundant energy resource on earth.

4 0

4 years ago

What a medium-mass star becomes at the end of its life?

Reika [66]

Answer:

What a medium-mass star becomes after a planetary nebula; a very bright, dense mass about the size of the planet Earth. ... The process that generates all of the energy that a star produces. Supernova. A Red Super Giant explodes into this when it runs out of elements to fuse together.

Explanation:

7 0

3 years ago

A 800-gram grinding wheel 27.0 cm in diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the cent

SSSSS [86.1K]

Explanation:

d = Diameter of wheel = 27 cm

r = Radius = $\frac{d}{2}=\frac{27}{2}=13.5\ cm$

m = Mass of wheel = 800 g

$\omega_i$ = Initial angular velocity = $245\times \frac{2\pi}{60}\ rad/s$

Equation of rotational motion

$\omega_f=\omega_i+\alpha t\\\Rightarrow \alpha=\frac{\omega_f-\omega_i}{t}\\\Rightarrow \alpha=\frac{0-245\times \frac{2\pi}{60}}{50}\\\Rightarrow \alpha=-0.51312\ rad/s^2$