Inside a generator is a magnet, some electrical wire, and a source of mechanical energy. The mechanical energy moves the wire into the magnetic field of the magnet so that the wire cuts through the magnetic lines of force. As a result, electric current is produced. Electric generators can come in all sizes
Answer:
No. Potatoes will be warmer.
Explanation:
where,
Q = heat taken
m = mass of substance
c = specific heat of substance = ?
ΔT = change in temperature
As we are given that the potatoes have a specific heat of 3430 J/(kg⋅∘C) and raisins have a specific heat of 1630 J/(kg⋅∘C). It implies that substance take more heat when higher the value of specific heat i.e more warmer will be the substance. Thus, the potatoes will be more warmer as compared to raisins.
Therefore, No. Potatoes will be warmer.
Answer:
it is 12.15 km
Explanation:
1215 km ÷1000
=12.15
please mark as brainliest
Point I is not correct.
Sound waves are not caused by vibration. They do vibrate but are not caused by vibration.
hope this helps :)
Answer:
(a) 3.33 x 10^-7 T along Y axis
(b) 6 x 10^14 Hz
(c) 3.768 x 10^15 rad/s
(d) 2 x 10^6 m^-1
Explanation:
Wavelength = 500 nm = 500 x 10^-9 m
Electric Field, E = 100 i (along + X axis)
Wave is in +Z axis
So, the magnetic field is in + Y axis.
(a) c = E / B
B = E / c = 100 / (3 x 10^8) = 3.33 x 10^-7 T along Y axis
(b) Frequency = wave speed / wavelength = ( 3 x 10^8) / (500 x 10^-9)
frequency = 6 x 10^14 Hz
(c) w = 2 x 3.14 x f = 2 x 3.14 x 6 x 10^14 = 3.768 x 10^15 rad/s
(d) k = reciprocal of wavelength = 1 / (500 x 10^-9) = 2 x 10^6 m^-1
