Generally, a lightning process takes about 0.0.3s, 17. Usually, a lightning process lasts about 0.0.3s, which is composed of several successive flashes. The duration of each flash is only 40 ~ 80, and the charge transfer mainly occurs in the first flash process. Before a certain lightning, the potential difference between cloud and ground is about 1.0 x 109 V, and the distance between cloud and ground is about 1 km: the charge transferred between cloud and ground in the first flash process is about 6 C, It is assumed that the electric field between cloud and ground before lightning is uniform. According to the above data, the following judgment is correct A. The instantaneous value of lightning current can reach 1 × 105a B. The average power of the whole lightning process is about 1x1014w C. Before lightning, the electric field intensity between cloud and ground is about 1 × 106 V / m D. The energy released during the whole lightning process is about 6 x 106 J

Generally, a lightning process takes about 0.0.3s, 17. Usually, a lightning process lasts about 0.0.3s, which is composed of several successive flashes. The duration of each flash is only 40 ~ 80, and the charge transfer mainly occurs in the first flash process. Before a certain lightning, the potential difference between cloud and ground is about 1.0 x 109 V, and the distance between cloud and ground is about 1 km: the charge transferred between cloud and ground in the first flash process is about 6 C, It is assumed that the electric field between cloud and ground before lightning is uniform. According to the above data, the following judgment is correct A. The instantaneous value of lightning current can reach 1 × 105a B. The average power of the whole lightning process is about 1x1014w C. Before lightning, the electric field intensity between cloud and ground is about 1 × 106 V / m D. The energy released during the whole lightning process is about 6 x 106 J

The charge transfer mainly occurs in the first lightning. The energy released by the lightning process is about w = Qu = 6.0 × 10 ^ 9 J, so the D term is wrong. A lightning process lasts for 0.0.3s. The average power of the whole lightning process is p = w / T = 2.0 × 10 ^ 10W ~ 3.0 × 10 ^ 1

Lightning is a kind of discharge phenomenon in the atmosphere. The discharge time of lightning is one hundredth to one thousandth of a second. The speed of lightning light can reach the fifth power km of 3.0 * 10 per second. The distance of instantaneous lightning in the air is generally between several thousand meters and several thousand meters?
① 3000 to 3000 ② 300 to 30000 ③ 300 to 3000 ④ cannot be determined

③ 300 to 3000, the discharge time is one hundredth to one thousandth of a second, and the speed can reach the fifth power km of 3.0 * 10 per second,

What is lightning?
Atmospheric discharge, right?

Lightning is a kind of (discharge) phenomenon

Suppose that the velocity of Guang in the air is 3 × 10 to the ninth Power M / s, and the velocity of sound in the air is 340 m / s. someone hears thunder 1.5 seconds after seeing lightning
So how far is he from where the thunder happened?

Let the secondary distance be s
The eighth power of S / 340 - S / 3 × 10 = 1.5
Because of the fast speed of light, it can be considered that light is instantaneous
It can also be expressed as S / 340 = 1.5
S=510