Frequency represents the number of complete oscillations in one second. it is measured in Hertz (Hz). Electromagnetic waves are waves which do not require a material media for transmission. They travel with a speed of light.
The speed (m/s) of a wave is given by frequency (Hz) × Wavelength (m)
Speed is 300,000 km/sec or 300,000,000 m/s and the wavelength is 300,000 km or 300,000,000 m.
Frequency = speed÷ wavelength
= 300000000 ÷ 300000000 = 1
Therefore, the frequency of the wave is 1Hz
Answer:
Yes to answer is 3/5 of what
Answer:
It's perimeter
Explanation:
That's what it said when I looked it up so hopefully that's correct.
Electric field due to a point charge is given by formula

now due to negative charge also the magnitude of electric field will be same
only difference is the direction of field due to negative charge is radially inwards
now we can say that net field due to these two charges is given as



now it is given that distance r is very large than "d" so we can say

<em>so above is the electric field due to dipole</em>
Answer:
power = 142.4 W
Explanation:
power of heater in Germany (P₁) = 523.2 W
power of heater in America (P₂) = ?
outlet voltage in Germany (V₁) = 230 V
outlet voltage in America (V₂) = 120 V
- While in Germany, power =

523.2 = 
R = 101.1
- While in America, also power =

using the value of R gotten above
power = 
power = 142.4 W