# Physics

In a lightning bolt, 16 C of charge flows in a time of 1.5 10-3 s. Assuming that the lightning bolt can be represented as a long, straight line of current, what is the magnitude of the magnetic field at a distance of 24 m from the bolt?

please tell me where I am going wrong.

B = (N)(permeability of free space consant)(I =charge/time) / 2R

B = (1)(4pi x 10^-7)(16/1.5 x 10^-3) / 2(24)

B = 0.000279289 T

1. 👍
2. 👎
3. 👁
1. There should be a pi in the denominator of Ampere's law.

1. 👍
2. 👎

## Similar Questions

1. ### math

Nut C fits on Bolt C. Nut B fits on Bolt B. Nut A fits on Bolt A. Bolt C is larger than Bolt B. bolt A and Bolt B are exactly the same. Which is true? a. Nut C will fit on all of the bolts. b. Nut A will fit on Bolt C and Bolt B

2. ### math

Nut B fits on Bolt B. Nut A fits on Bolt C, but does not fit on Bolt A. Bolt B and Bolt A are exactly the same. Given this scenario, will Nut A fit on Bolt B? a. Yes b. no c. not enough info

3. ### math

nut B fits on Bolt B. Nut A fits on Bolt C, but does not fit on Bolt A. Bolt B and Bolt A are exactly the same. Will Nut A fit on Bolt B? a. Yes b. no c. Not enough info

4. ### physics - conceptual

Three identical capacitors are connected in series to a battery. If a total charge of Q flows from the battery, how much charge does each capacitor carry? A)9Q B)Q/3 C)Q D)3Q E)Q/9

1. ### Physics

When a nerve cell depolarizes, charge is transferred across the cell membrane, changing the potential difference. For a typical nerve cell, 9.0 pC of charge flows in a time of 0.50ms. What is the average current(Value and units)?

2. ### physics

To tighten a bolt, you push with a force of 72 N at the end of a wrench handle that is 0.26 m from the axis of the bolt.What torque are you exerting?

3. ### Physics

A typical lightning flash delivers about 27C of negative charge from cloud to ground. How many electrons are involved?

4. ### Physics

how many seconds will elapse between seeing lightning and hearing the thunder if the lightning strikes miles away and the temperature is 100.0 degrees F?

1. ### Physics

Help me please I'm stuck on this question 2.In a thunderstorm at 20.0°C, Karen sees a bolt of lightning and hears the thunderclap 3.00 s later. How far from Karen did the lightning strike? Show your work.

2. ### physics

To tighten a bolt, you push with a force of 84N at the end of a wrench handle that is 0.24m from the axis of the bolt. If you move your hand inward to be only 0.10 m from the bolt, find the force that you should exert to achieve

3. ### Physics

In a typical lightning strike, 2.5 C flows from cloud to ground in 0.20 ms. What is the current during the strike?

4. ### Physics

In a lightning bolt, a large amount of charge flows during a time of 2.2 10-3 s. Assume that the bolt can be treated as a long, straight line of current. At a perpendicular distance of 28 m from the bolt, a magnetic field of 7.3