What is the relationship between the strength of an

electromagnet and the number of turns in the coil?

as the number of turns in the coil increases, the strength

of the electromagnet increases.

the number of turns in the coil has no impact on the

strength of the electromagnet.

as the number of turns in the coil decreases, the

strength of the electromagnet increases.

As the number of turns in the coil increases, the strength  of the electromagnet increases.

Explanation:

When current flows through a coil the coil behaves as an electromagnet. The strength of electromagnet depend the amount of current, no of turns of coil and the core of coil.

B=μ₀ N I

μ₀ = permeability of the core

N = Number of turns of the coil

I = Current flowing through the coil

Increasing the current and number of coils increase the strength of electromagnet.

Since the waves must carry a great deal of visual as well as audio information, each channel requires a larger range of frequencies than simple radio transmission. TV channels utilize frequencies in the range of 54 to 88 MHz and 174 to 222 MHz. (The entire FM radio band lies between channels 88 MHz and 174 MHz.)

Explanation:

Ok