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3 years ago

Suppose the three resistors in the picture represents a 240 W

2 answers:

4 0

Suppose the three resistors in the picture represents a 240 W television , a 720 W straightening iron and a 1440 W hair dryer, Will the fuse melt or blow ?

➪ The fuse will not blow but it will melt because a fuse never blows up.The fuse melts down to break the circuit and stop the extreme flow of current. The wire of a fuse is made up of solder, it has a high melting point so that when heavy current flows through it. The wire melts and breaks the circuit preventing it from catching fire.

Airida [17]3 years ago

3 0

A fuse is an electrical safety device which should not blow, which should overheat and melts if current is too high. Its placed in the live wire before the switch. This prevents overheating and catching fire. A fuse have a specific current value for example - 3000 amps. So when choosing a suitable fuse you must use the above minimum value but less than maximum value. For example in a circuit there is 1000W flowing, you should choose more than 1000 amps fuse not less or else, it will melt.

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When light passes through a convex lens, it does this.....

Tpy6a [65]

Explanation:

6. Converge or come together

7. convex

3 0

3 years ago

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The strength of the gravitational pull between two object's is determined by?

iogann1982 [59]

Mass and distance are the two factors

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3 years ago

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Two conducting spheres are each given a charge Q. The radius of the larger sphere is three times greater than that of the smalle

padilas [110]

Answer:

Explanation:

If E₀ is the electric field outside the smaller sphere and r is the radius of larger sphere.

E₀ = kQ/r²

The radius of the larger sphere is 3r and the charge on both sphere is same then the electric field outside the larger sphere is given as

E = kQ/(3r)² = kQ/9r² = 1/9 (kQ/r²)= 1/9 x E₀

hence the correct option is e.

5 0

3 years ago

Both the lens and the cornea of the eye have a primary function of

3241004551 [841]

Answer: B. bending light

Explanation:

The phenomenom of vision in human eye is thanks to refraction (when light changes its direction as it passes through one medium to another), and this is what the cornea and the lens do.

When the ray of light encounters the eye, the first thing it finds is the cornea, which bends this ray and begins to form an image, then light passes through the pupil, which is in charge of regulating the amount of light that enters in the eye.

After light travels through pupil it passes through the lens, where the rays of light change the direction again in order to focus the formed image on the retina.

At this point it is important to note the formed image is downward, then the retina transforms light into electrical impulses that are sent to the brain through the optic nerve and finally the brain interprets these messages, and forms a right upward image.

In the image attached these parts can be seen.

6 0

3 years ago

Which region of the early universe was most likely to become a galaxy?

kramer

Answer:

This is likely possible for a region whose matter density is higher than the normal average.

Explanation:

A galaxy is a collection of lumps in space which are clumped together and interact with each other. There are a lot of speculations on how galaxies were birthed. some believe its formed by a collection of massive gas, dust which eventually collapsed under their own gravitational pull. others says its formed by the combination of large lumps of matter which accumulated forming thee galaxies. The possibility of a galaxy forming is dependent on how massive the matter in the region of the universe is.

3 0

3 years ago