All categories

3 years ago

State three factors that determine the strength of electromagnetic

Physics

2 answers:

Sunny_sXe [5.5K]3 years ago

7 0

Answer:

Factors that affect the strength of electromagnets are the nature of the core material, strength of the current passing through the core, the number of turns of wire on the core and the shape and size of the core.Nov 28, 2020

Explanation:

sp2606 [1]3 years ago

6 0

The number of turns of wire on the core and the shape and size of the core.

You might be interested in

RATIO of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is:

katen-ka-za [31]

Answer:

Explanation:

Hope it is helpful....

8 0

2 years ago

Read 2 more answers

2) The horizontal and vertical components of the initial velocity of a football are 16 m/s and 20 m/s respectively. How long doe

ValentinkaMS [17]

Answer: 2.04 s

Explanation:

Let the initial velocity be v, Angle of projectile be

Then the horizontal component = v cos θ = 16 m/s

Vertical component of velocity = v sin θ = 20 m/s

Time taken to reach the highest point is half the time taken for total flight.

Time for total flight,

$t = \frac{2vsin \theta}{g}$

$t'=\frac{vsin \theta}{g} = \frac {20 m/s}{9.8 m/s^2} = 2.04 s$

Thus, the football takes 2.04 s to rise to the highest point of its trajectory.

5 0

3 years ago

What wa can friction do to things like brake pads

andrey2020 [161]

Ware them down, its like rubbing two pieces of chalk together.

4 0

3 years ago

Read 2 more answers

Arianna is experimenting with different materials to see which one will

sp2606 [1]

Answer:

Concrete

Explanation:

The speed at which sound propagates is medium dependent. As one of the forms of mechanical waves, sound requires a material medium for propagation from place to place.

Sound travels with the least speed in air because air particles are far apart and they are randomized.
Sound travels with the greatest speed in solids. Concrete is the only solid material given in the choice.

The speed of sound increases from air to liquid and to solid.

8 0

2 years ago

. When two speakers play different sounds with a constant frequency, beats are heard with a frequency of 5 Hz. If the frequency

morpeh [17]

The beat frequency is the concept required to develop this process. The phenomenon is generated when you have two waves but their frequencies do not differ greatly. So the beat frequency will be the difference between those two waves. For this case we have the difference and one of the waves, therefore,

$F_b = |F_1-F_2|$